22211772643850 has 24 divisors (see below), whose sum is σ = 41314487370240. Its totient is φ = 8884582121520.

The previous prime is 22211772643847. The next prime is 22211772643871. The reversal of 22211772643850 is 5834627711222.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401141 + ... + 6677159.

It is an arithmetic number, because the mean of its divisors is an integer number (1721436973760).

Almost surely, 2^{22211772643850} is an apocalyptic number.

22211772643850 is a deficient number, since it is larger than the sum of its proper divisors (19102714726390).

22211772643850 is a wasteful number, since it uses less digits than its factorization.

22211772643850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346814 (or 6346809 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 22211772643850 in words is "twenty-two trillion, two hundred eleven billion, seven hundred seventy-two million, six hundred forty-three thousand, eight hundred fifty".