102102211102020 has 48 divisors (see below), whose sum is σ = 286903579713408. Its totient is φ = 27130362138880.

The previous prime is 102102211102009. The next prime is 102102211102027. The reversal of 102102211102020 is 20201112201201.

It is a super-2 number, since 2×102102211102020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (102102211102027) 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, 3027925344 + ... + 3027959063.

It is an arithmetic number, because the mean of its divisors is an integer number (5977157910696).

Almost surely, 2^{102102211102020} is an apocalyptic number.

102102211102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102211102020 is an abundant number, since it is smaller than the sum of its proper divisors (184801368611388).

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

102102211102020 is a wasteful number, since it uses less digits than its factorization.

102102211102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055884700 (or 6055884698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102102211102020 its reverse (20201112201201), we get a palindrome (122303323303221).

The spelling of 102102211102020 in words is "one hundred two trillion, one hundred two billion, two hundred eleven million, one hundred two thousand, twenty".