212110121011020 has 96 divisors (see below), whose sum is σ = 594645490252800. Its totient is φ = 56492504200704.

The previous prime is 212110121010961. The next prime is 212110121011043. The reversal of 212110121011020 is 20110121011212.

It is a happy number.

It is a super-2 number, since 2×212110121011020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699607021 + ... + 699910139.

It is an arithmetic number, because the mean of its divisors is an integer number (6194223856800).

Almost surely, 2^{212110121011020} is an apocalyptic number.

212110121011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110121011020 is an abundant number, since it is smaller than the sum of its proper divisors (382535369241780).

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

212110121011020 is a wasteful number, since it uses less digits than its factorization.

212110121011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317567 (or 317565 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212110121011020 its reverse (20110121011212), we get a palindrome (232220242022232).

The spelling of 212110121011020 in words is "two hundred twelve trillion, one hundred ten billion, one hundred twenty-one million, eleven thousand, twenty".