211210011020 has 24 divisors (see below), whose sum is σ = 444069712800. Its totient is φ = 84383301632.

The previous prime is 211210011013. The next prime is 211210011113. The reversal of 211210011020 is 20110012112.

It is a junction number, because it is equal to n+sod(n) for n = 211210010992 and 211210011010.

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, 6276725 + ... + 6310284.

It is an arithmetic number, because the mean of its divisors is an integer number (18502904700).

Almost surely, 2^211210011020 is an apocalyptic number.

211210011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211210011020 is an abundant number, since it is smaller than the sum of its proper divisors (232859701780).

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

211210011020 is a wasteful number, since it uses less digits than its factorization.

211210011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587857 (or 12587855 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211210011020 its reverse (20110012112), we get a palindrome (231320023132).

The spelling of 211210011020 in words is "two hundred eleven billion, two hundred ten million, eleven thousand, twenty".