212022020111 has 4 divisors (see below), whose sum is σ = 231296749224. Its totient is φ = 192747291000.

The previous prime is 212022020107. The next prime is 212022020131. The reversal of 212022020111 is 111020220212.

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

It is not a de Polignac number, because 212022020111 - 2² = 212022020107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022020101) 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, 9637364540 + ... + 9637364561.

It is an arithmetic number, because the mean of its divisors is an integer number (57824187306).

Almost surely, 2^212022020111 is an apocalyptic number.

212022020111 is a deficient number, since it is larger than the sum of its proper divisors (19274729113).

212022020111 is a wasteful number, since it uses less digits than its factorization.

212022020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19274729112.

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

Adding to 212022020111 its reverse (111020220212), we get a palindrome (323042240323).

It can be divided in two parts, 2120220201 and 11, that added together give a palindrome (2120220212).

The spelling of 212022020111 in words is "two hundred twelve billion, twenty-two million, twenty thousand, one hundred eleven".