212022011021111 has 4 divisors (see below), whose sum is σ = 212156287153800. Its totient is φ = 211887734888424.

The previous prime is 212022011021087. The next prime is 212022011021113. The reversal of 212022011021111 is 111120110220212.

212022011021111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212022011021111 is a prime.

It is a super-2 number, since 2×212022011021111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212022011021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022011021113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67138063976 + ... + 67138067133.

It is an arithmetic number, because the mean of its divisors is an integer number (53039071788450).

Almost surely, 2^{212022011021111} is an apocalyptic number.

212022011021111 is a deficient number, since it is larger than the sum of its proper divisors (134276132689).

212022011021111 is a wasteful number, since it uses less digits than its factorization.

212022011021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134276132688.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212022011021111 its reverse (111120110220212), we get a palindrome (323142121241323).

The spelling of 212022011021111 in words is "two hundred twelve trillion, twenty-two billion, eleven million, twenty-one thousand, one hundred eleven".