102122001020 has 48 divisors (see below), whose sum is σ = 230980780128. Its totient is φ = 37702022400.

The previous prime is 102122001011. The next prime is 102122001067. The reversal of 102122001020 is 20100221201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102122000992 and 102122001010.

It is a congruent number.

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, 2750822 + ... + 2787698.

It is an arithmetic number, because the mean of its divisors is an integer number (4812099586).

Almost surely, 2^102122001020 is an apocalyptic number.

102122001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102122001020 is an abundant number, since it is smaller than the sum of its proper divisors (128858779108).

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

102122001020 is a wasteful number, since it uses less digits than its factorization.

102122001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47550 (or 47548 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102122001020 its reverse (20100221201), we get a palindrome (122222222221).

The spelling of 102122001020 in words is "one hundred two billion, one hundred twenty-two million, one thousand, twenty".