20222192 has 10 divisors (see below), whose sum is σ = 39180528. Its totient is φ = 10111088.

The previous prime is 20222179. The next prime is 20222201. The reversal of 20222192 is 29122202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631928 + ... + 631959.

Almost surely, 2^20222192 is an apocalyptic number.

It is an amenable number.

20222192 is a deficient number, since it is larger than the sum of its proper divisors (18958336).

20222192 is a wasteful number, since it uses less digits than its factorization.

20222192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263895 (or 1263889 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20222192 is about 4496.9091607459. The cubic root of 20222192 is about 272.4432651293.

Adding to 20222192 its reverse (29122202), we get a palindrome (49344394).

The spelling of 20222192 in words is "twenty million, two hundred twenty-two thousand, one hundred ninety-two".