212210101020 has 96 divisors (see below), whose sum is σ = 597229532928. Its totient is φ = 56300078592.

The previous prime is 212210101003. The next prime is 212210101027. The reversal of 212210101020 is 20101012212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212210100987 and 212210101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210101027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22563639 + ... + 22573041.

It is an arithmetic number, because the mean of its divisors is an integer number (6221140968).

Almost surely, 2^212210101020 is an apocalyptic number.

212210101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210101020 is an abundant number, since it is smaller than the sum of its proper divisors (385019431908).

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

212210101020 is a wasteful number, since it uses less digits than its factorization.

212210101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11299 (or 11297 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212210101020 its reverse (20101012212), we get a palindrome (232311113232).

The spelling of 212210101020 in words is "two hundred twelve billion, two hundred ten million, one hundred one thousand, twenty".