102011020202020 has 24 divisors (see below), whose sum is σ = 214248715551864. Its totient is φ = 40799537008896.

The previous prime is 102011020201969. The next prime is 102011020202087. The reversal of 102011020202020 is 20202020110201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16976839127616 + 85034181074404 = 4120296^2 + 9221398^2 .

It is a super-2 number, since 2×102011020202020² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304270267 + ... + 304605346.

It is an arithmetic number, because the mean of its divisors is an integer number (8927029814661).

Almost surely, 2^{102011020202020} is an apocalyptic number.

102011020202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011020202020 is an abundant number, since it is smaller than the sum of its proper divisors (112237695349844).

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

102011020202020 is a wasteful number, since it uses less digits than its factorization.

102011020202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608883999 (or 608883997 counting only the distinct ones).

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

Adding to 102011020202020 its reverse (20202020110201), we get a palindrome (122213040312221).

The spelling of 102011020202020 in words is "one hundred two trillion, eleven billion, twenty million, two hundred two thousand, twenty".