102201111102020 has 48 divisors (see below), whose sum is σ = 245309166748800. Its totient is φ = 35036595220224.

The previous prime is 102201111102001. The next prime is 102201111102023. The reversal of 102201111102020 is 20201111102201.

It is a super-2 number, since 2×102201111102020² (a number of 29 digits) contains 22 as substring.

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 = 102201111101986 and 102201111102004.

It is not an unprimeable number, because it can be changed into a prime (102201111102023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38134070 + ... + 40726029.

It is an arithmetic number, because the mean of its divisors is an integer number (5110607640600).

Almost surely, 2^{102201111102020} is an apocalyptic number.

102201111102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201111102020 is an abundant number, since it is smaller than the sum of its proper divisors (143108055646780).

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

102201111102020 is a wasteful number, since it uses less digits than its factorization.

102201111102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78869372 (or 78869370 counting only the distinct ones).

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

Adding to 102201111102020 its reverse (20201111102201), we get a palindrome (122402222204221).

The spelling of 102201111102020 in words is "one hundred two trillion, two hundred one billion, one hundred eleven million, one hundred two thousand, twenty".