221011422970 has 16 divisors (see below), whose sum is σ = 428422143240. Its totient is φ = 81604217664.

The previous prime is 221011422949. The next prime is 221011422977. The reversal of 221011422970 is 79224110122.

221011422970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117052252641 + 103959170329 = 342129^2 + 322427^2 .

It is not an unprimeable number, because it can be changed into a prime (221011422977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850043805 + ... + 850044064.

Almost surely, 2^221011422970 is an apocalyptic number.

221011422970 is a deficient number, since it is larger than the sum of its proper divisors (207410720270).

221011422970 is a wasteful number, since it uses less digits than its factorization.

221011422970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700087889.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 221011422970 in words is "two hundred twenty-one billion, eleven million, four hundred twenty-two thousand, nine hundred seventy".