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102201111210020 = 22543213247557281
BaseRepresentation
bin10111001111001110001100…
…111011011110100000100100
3111101212022221011101101022212
4113033032030323132200210
5101343430333432210040
61001210313050542552
730345533544546554
oct2717161473364044
9441768834341285
10102201111210020
112a62327a99a749
12b567315437a58
1345046a5ca36b4
141b347bb19d164
15bc374356dd65
hex5cf38cede824

102201111210020 has 48 divisors (see below), whose sum is σ = 219614974537728. Its totient is φ = 39929477575680.

The previous prime is 102201111210019. The next prime is 102201111210071. The reversal of 102201111210020 is 20012111102201.

It is a junction number, because it is equal to n+sod(n) for n = 102201111209977 and 102201111210004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183113780 + ... + 183671060.

It is an arithmetic number, because the mean of its divisors is an integer number (4575311969536).

Almost surely, 2102201111210020 is an apocalyptic number.

102201111210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201111210020 is an abundant number, since it is smaller than the sum of its proper divisors (117413863327708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102201111210020 is a wasteful number, since it uses less digits than its factorization.

102201111210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770580 (or 770578 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102201111210020 its reverse (20012111102201), we get a palindrome (122213222312221).

The spelling of 102201111210020 in words is "one hundred two trillion, two hundred one billion, one hundred eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 213247 426494 557281 852988 1066235 1114562 2132470 2229124 2786405 4264940 5572810 9169621 11145620 18339242 23963083 36678484 45848105 47926166 91696210 95852332 119815415 183392420 239630830 479261660 118838501407 237677002814 475354005628 594192507035 1188385014070 2376770028140 5110055560501 10220111121002 20440222242004 25550277802505 51100555605010 102201111210020