20212022 has 8 divisors (see below), whose sum is σ = 30436776. Its totient is φ = 10066432.

The previous prime is 20212013. The next prime is 20212033. The reversal of 20212022 is 22021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20211994 and 20212012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19148 + ... + 20175.

It is an arithmetic number, because the mean of its divisors is an integer number (3804597).

Almost surely, 2^20212022 is an apocalyptic number.

20212022 is a deficient number, since it is larger than the sum of its proper divisors (10224754).

20212022 is a wasteful number, since it uses less digits than its factorization.

20212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39582.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20212022 is about 4495.7782418620. The cubic root of 20212022 is about 272.3975857322.

Adding to 20212022 its reverse (22021202), we get a palindrome (42233224).

It can be divided in two parts, 2021202 and 2, that multiplied together give a palindrome (4042404).

The spelling of 20212022 in words is "twenty million, two hundred twelve thousand, twenty-two".