20087122 has 16 divisors (see below), whose sum is σ = 33242400. Its totient is φ = 9027040.

The previous prime is 20087083. The next prime is 20087131. The reversal of 20087122 is 22178002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20087093 and 20087102.

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, 3172 + ... + 7087.

It is an arithmetic number, because the mean of its divisors is an integer number (2077650).

Almost surely, 2^20087122 is an apocalyptic number.

20087122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20087122 is a deficient number, since it is larger than the sum of its proper divisors (13155278).

20087122 is a wasteful number, since it uses less digits than its factorization.

20087122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 20087122 is about 4481.8659060708. The cubic root of 20087122 is about 271.8353332185.

The spelling of 20087122 in words is "twenty million, eighty-seven thousand, one hundred twenty-two".