20222090 has 32 divisors (see below), whose sum is σ = 41779584. Its totient is φ = 6903360.

The previous prime is 20222087. The next prime is 20222101. The reversal of 20222090 is 9022202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21020 + ... + 21960.

It is an arithmetic number, because the mean of its divisors is an integer number (1305612).

Almost surely, 2^20222090 is an apocalyptic number.

20222090 is an abundant number, since it is smaller than the sum of its proper divisors (21557494).

20222090 is a wasteful number, since it uses less digits than its factorization.

20222090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20222090 is about 4496.8978196085. The cubic root of 20222090 is about 272.4428070639.

Adding to 20222090 its reverse (9022202), we get a palindrome (29244292).

The spelling of 20222090 in words is "twenty million, two hundred twenty-two thousand, ninety".