211020221210112 has 60 divisors (see below), whose sum is σ = 609018646253160. Its totient is φ = 70340073735168.

The previous prime is 211020221210111. The next prime is 211020221210143. The reversal of 211020221210112 is 211012122020112.

211020221210112 is a `hidden beast` number, since 21 + 102 + 0 + 221 + 210 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020221210111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22897154812 + ... + 22897164027.

It is an arithmetic number, because the mean of its divisors is an integer number (10150310770886).

Almost surely, 2^{211020221210112} is an apocalyptic number.

It is an amenable number.

211020221210112 is an abundant number, since it is smaller than the sum of its proper divisors (397998425043048).

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

211020221210112 is an equidigital number, since it uses as much as digits as its factorization.

211020221210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45794318863 (or 45794318844 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211020221210112 its reverse (211012122020112), we get a palindrome (422032343230224).

The spelling of 211020221210112 in words is "two hundred eleven trillion, twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred twelve".