102120010202020 has 12 divisors (see below), whose sum is σ = 214452021424284. Its totient is φ = 40848004080800.

The previous prime is 102120010201967. The next prime is 102120010202057. The reversal of 102120010202020 is 20202010021201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28562525849664 + 73557484352356 = 5344392^2 + 8576566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553000255031 + ... + 2553000255070.

It is an arithmetic number, because the mean of its divisors is an integer number (17871001785357).

Almost surely, 2^{102120010202020} is an apocalyptic number.

102120010202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120010202020 is an abundant number, since it is smaller than the sum of its proper divisors (112332011222264).

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

102120010202020 is a wasteful number, since it uses less digits than its factorization.

102120010202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106000510110 (or 5106000510108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120010202020 its reverse (20202010021201), we get a palindrome (122322020223221).

The spelling of 102120010202020 in words is "one hundred two trillion, one hundred twenty billion, ten million, two hundred two thousand, twenty".