20228122 has 16 divisors (see below), whose sum is σ = 32804640. Its totient is φ = 9322128.

The previous prime is 20228101. The next prime is 20228161. The reversal of 20228122 is 22182202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 20228122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788 + ... + 8599.

It is an arithmetic number, because the mean of its divisors is an integer number (2050290).

Almost surely, 2^20228122 is an apocalyptic number.

20228122 is a deficient number, since it is larger than the sum of its proper divisors (12576518).

20228122 is a wasteful number, since it uses less digits than its factorization.

20228122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14445.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 20228122 is about 4497.5684541761. The cubic root of 20228122 is about 272.4698931472.

The spelling of 20228122 in words is "twenty million, two hundred twenty-eight thousand, one hundred twenty-two".