211012220120 has 32 divisors (see below), whose sum is σ = 511298842320. Its totient is φ = 77912204160.

The previous prime is 211012220101. The next prime is 211012220123. The reversal of 211012220120 is 21022210112.

It is a junction number, because it is equal to n+sod(n) for n = 211012220095 and 211012220104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012220123) 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, 202895846 + ... + 202896885.

Almost surely, 2^211012220120 is an apocalyptic number.

211012220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012220120 is an abundant number, since it is smaller than the sum of its proper divisors (300286622200).

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

211012220120 is a wasteful number, since it uses less digits than its factorization.

211012220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405792755 (or 405792751 counting only the distinct ones).

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

Adding to 211012220120 its reverse (21022210112), we get a palindrome (232034430232).

The spelling of 211012220120 in words is "two hundred eleven billion, twelve million, two hundred twenty thousand, one hundred twenty".