22201020987 has 16 divisors (see below), whose sum is σ = 31356703872. Its totient is φ = 13923792000.

The previous prime is 22201020971. The next prime is 22201021019. The reversal of 22201020987 is 78902010222.

It is not a de Polignac number, because 22201020987 - 2⁴ = 22201020971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22201020937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18108 + ... + 211494.

It is an arithmetic number, because the mean of its divisors is an integer number (1959793992).

Almost surely, 2^22201020987 is an apocalyptic number.

22201020987 is a deficient number, since it is larger than the sum of its proper divisors (9155682885).

22201020987 is a wasteful number, since it uses less digits than its factorization.

22201020987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195658.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 22201020987 in words is "twenty-two billion, two hundred one million, twenty thousand, nine hundred eighty-seven".