102222222111020 has 96 divisors (see below), whose sum is σ = 240508935072000. Its totient is φ = 36179888672000.

The previous prime is 102222222110999. The next prime is 102222222111041. The reversal of 102222222111020 is 20111222222201.

It is an interprime number because it is at equal distance from previous prime (102222222110999) and next prime (102222222111041).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102222222110983 and 102222222111001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37675970 + ... + 40297929.

It is an arithmetic number, because the mean of its divisors is an integer number (2505301407000).

Almost surely, 2^{102222222111020} is an apocalyptic number.

102222222111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102222222111020 is an abundant number, since it is smaller than the sum of its proper divisors (138286712960980).

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

102222222111020 is a wasteful number, since it uses less digits than its factorization.

102222222111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77974079 (or 77974077 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102222222111020 its reverse (20111222222201), we get a palindrome (122333444333221).

The spelling of 102222222111020 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, twenty".