211012101020 has 48 divisors (see below), whose sum is σ = 507055308480. Its totient is φ = 72257539584.

The previous prime is 211012100989. The next prime is 211012101073. The reversal of 211012101020 is 20101210112.

It is a super-2 number, since 2×211012101020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211012100992 and 211012101010.

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, 818279 + ... + 1044798.

It is an arithmetic number, because the mean of its divisors is an integer number (10563652260).

Almost surely, 2^211012101020 is an apocalyptic number.

211012101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012101020 is an abundant number, since it is smaller than the sum of its proper divisors (296043207460).

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

211012101020 is a wasteful number, since it uses less digits than its factorization.

211012101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863902 (or 1863900 counting only the distinct ones).

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

Adding to 211012101020 its reverse (20101210112), we get a palindrome (231113311132).

The spelling of 211012101020 in words is "two hundred eleven billion, twelve million, one hundred one thousand, twenty".