212011022120 has 32 divisors (see below), whose sum is σ = 477037905120. Its totient is φ = 84802079040.

The previous prime is 212011022101. The next prime is 212011022123. The reversal of 212011022120 is 21220110212.

It is a junction number, because it is equal to n+sod(n) for n = 212011022095 and 212011022104.

It is not an unprimeable number, because it can be changed into a prime (212011022123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2844935 + ... + 2918505.

It is an arithmetic number, because the mean of its divisors is an integer number (14907434535).

Almost surely, 2^212011022120 is an apocalyptic number.

212011022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011022120 is an abundant number, since it is smaller than the sum of its proper divisors (265026883000).

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

212011022120 is a wasteful number, since it uses less digits than its factorization.

212011022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145625 (or 145621 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212011022120 its reverse (21220110212), we get a palindrome (233231132332).

The spelling of 212011022120 in words is "two hundred twelve billion, eleven million, twenty-two thousand, one hundred twenty".