20099122 has 16 divisors (see below), whose sum is σ = 30602880. Its totient is φ = 9899568.

The previous prime is 20099113. The next prime is 20099141. The reversal of 20099122 is 22199002.

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, 54583 + ... + 54949.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^20099122 is an apocalyptic number.

20099122 is a deficient number, since it is larger than the sum of its proper divisors (10503758).

20099122 is a wasteful number, since it uses less digits than its factorization.

20099122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 20099122 is about 4483.2044343304. The cubic root of 20099122 is about 271.8894537082.

The spelling of 20099122 in words is "twenty million, ninety-nine thousand, one hundred twenty-two".