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122022001220 = 2257895197373
BaseRepresentation
bin111000110100100010…
…0111111101001000100
3102122221220220220201112
41301221010333221010
53444400113014340
6132020042544152
711546550616460
oct1615104775104
9378856826645
10122022001220
1147827269609
121b794b08058
13b6780959b2
145c97acb4a0
153292762065
hex1c6913fa44

122022001220 has 48 divisors (see below), whose sum is σ = 292888528128. Its totient is φ = 41831011200.

The previous prime is 122022001207. The next prime is 122022001249. The reversal of 122022001220 is 22100220221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 122022001195 and 122022001204.

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, 1204454 + ... + 1301826.

It is an arithmetic number, because the mean of its divisors is an integer number (6101844336).

Almost surely, 2122022001220 is an apocalyptic number.

122022001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122022001220 is an abundant number, since it is smaller than the sum of its proper divisors (170866526908).

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

122022001220 is a wasteful number, since it uses less digits than its factorization.

122022001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106340 (or 106338 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122022001220 its reverse (22100220221), we get a palindrome (144122221441).

The spelling of 122022001220 in words is "one hundred twenty-two billion, twenty-two million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 8951 17902 35804 44755 62657 89510 97373 125314 179020 194746 250628 313285 389492 486865 626570 681611 973730 1253140 1363222 1947460 2726444 3408055 6816110 13632220 871585723 1743171446 3486342892 4357928615 6101100061 8715857230 12202200122 17431714460 24404400244 30505500305 61011000610 122022001220