102112322220 has 48 divisors (see below), whose sum is σ = 317682781920. Its totient is φ = 27229952448.

The previous prime is 102112322219. The next prime is 102112322233. The reversal of 102112322220 is 22223211201.

102112322220 is a `hidden beast` number, since 1 + 0 + 211 + 232 + 2 + 220 = 666.

It is a super-2 number, since 2×102112322220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102112322193 and 102112322202.

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, 94547907 + ... + 94548986.

It is an arithmetic number, because the mean of its divisors is an integer number (6618391290).

Almost surely, 2^102112322220 is an apocalyptic number.

102112322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102112322220 is an abundant number, since it is smaller than the sum of its proper divisors (215570459700).

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

102112322220 is a wasteful number, since it uses less digits than its factorization.

102112322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189096911 (or 189096903 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102112322220 its reverse (22223211201), we get a palindrome (124335533421).

The spelling of 102112322220 in words is "one hundred two billion, one hundred twelve million, three hundred twenty-two thousand, two hundred twenty".