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102022201212 = 22310779456543
BaseRepresentation
bin101111100000011111…
…1110011111101111100
3100202100002202210210220
41133000333303331330
53132420140414322
6114511321501340
710241130254601
oct1370077637574
9322302683726
10102022201212
113a2a3966878
1217933041850
13980b75b0c9
144d1b8586a8
1529c1a3555c
hex17c0ff3f7c

102022201212 has 24 divisors (see below), whose sum is σ = 240276589056. Its totient is φ = 33689573808.

The previous prime is 102022201111. The next prime is 102022201247. The reversal of 102022201212 is 212102220201.

It is a junction number, because it is equal to n+sod(n) for n = 102022201191 and 102022201200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39726988 + ... + 39729555.

It is an arithmetic number, because the mean of its divisors is an integer number (10011524544).

Almost surely, 2102022201212 is an apocalyptic number.

102022201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102022201212 is an abundant number, since it is smaller than the sum of its proper divisors (138254387844).

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

102022201212 is a wasteful number, since it uses less digits than its factorization.

102022201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79456657 (or 79456655 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102022201212 its reverse (212102220201), we get a palindrome (314124421413).

The spelling of 102022201212 in words is "one hundred two billion, twenty-two million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 79456543 158913086 238369629 317826172 476739258 953478516 8501850101 17003700202 25505550303 34007400404 51011100606 102022201212