2111202000020 has 48 divisors (see below), whose sum is σ = 4473060777360. Its totient is φ = 836951033856.

The previous prime is 2111201999993. The next prime is 2111202000059. The reversal of 2111202000020 is 200002021112.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1044840976 + 2110157159044 = 32324^2 + 1452638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2111201999965 and 2111202000010.

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, 53797766 + ... + 53836994.

It is an arithmetic number, because the mean of its divisors is an integer number (93188766195).

Almost surely, 2^{2111202000020} is an apocalyptic number.

2111202000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111202000020 is an abundant number, since it is smaller than the sum of its proper divisors (2361858777340).

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

2111202000020 is a wasteful number, since it uses less digits than its factorization.

2111202000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63164 (or 63162 counting only the distinct ones).

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

Adding to 2111202000020 its reverse (200002021112), we get a palindrome (2311204021132).

The spelling of 2111202000020 in words is "two trillion, one hundred eleven billion, two hundred two million, twenty", and thus it is an aban number.