212120220111102 has 12 divisors (see below), whose sum is σ = 459593810240760. Its totient is φ = 70706740037028.

The previous prime is 212120220111091. The next prime is 212120220111131. The reversal of 212120220111102 is 201111022021212.

212120220111102 is a `hidden beast` number, since 21 + 212 + 0 + 220 + 111 + 102 = 666.

212120220111102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212120220111102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11784456672839 = 212120220111102 / (2 + 1 + 2 + 1 + 2 + 0 + 2 + 2 + 0 + 1 + 1 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5892228336402 + ... + 5892228336437.

It is an arithmetic number, because the mean of its divisors is an integer number (38299484186730).

Almost surely, 2^{212120220111102} is an apocalyptic number.

212120220111102 is an abundant number, since it is smaller than the sum of its proper divisors (247473590129658).

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

212120220111102 is a wasteful number, since it uses less digits than its factorization.

212120220111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784456672847 (or 11784456672844 counting only the distinct ones).

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

Adding to 212120220111102 its reverse (201111022021212), we get a palindrome (413231242132314).

The spelling of 212120220111102 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred twenty million, one hundred eleven thousand, one hundred two".