211012001001020 has 24 divisors (see below), whose sum is σ = 443129900338944. Its totient is φ = 84403905498176.

The previous prime is 211012001000963. The next prime is 211012001001049. The reversal of 211012001001020 is 20100100210112.

It is a junction number, because it is equal to n+sod(n) for n = 211012001000992 and 211012001001010.

It is a congruent number.

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, 53996252 + ... + 57772131.

It is an arithmetic number, because the mean of its divisors is an integer number (18463745847456).

Almost surely, 2^{211012001001020} is an apocalyptic number.

211012001001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012001001020 is an abundant number, since it is smaller than the sum of its proper divisors (232117899337924).

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

211012001001020 is a wasteful number, since it uses less digits than its factorization.

211012001001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111862789 (or 111862787 counting only the distinct ones).

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

Adding to 211012001001020 its reverse (20100100210112), we get a palindrome (231112101211132).

The spelling of 211012001001020 in words is "two hundred eleven trillion, twelve billion, one million, one thousand, twenty".