221020010022202 has 16 divisors (see below), whose sum is σ = 343084527498600. Its totient is φ = 106661221811200.

The previous prime is 221020010022187. The next prime is 221020010022221. The reversal of 221020010022202 is 202220010020122.

It can be written as a sum of positive squares in 4 ways, for example, as 219901050141721 + 1118959880481 = 14829061^2 + 1057809^2 .

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, 680074927 + ... + 680399842.

Almost surely, 2^{221020010022202} is an apocalyptic number.

221020010022202 is a deficient number, since it is larger than the sum of its proper divisors (122064517476398).

221020010022202 is a wasteful number, since it uses less digits than its factorization.

221020010022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360477601.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221020010022202 its reverse (202220010020122), we get a palindrome (423240020042324).

The spelling of 221020010022202 in words is "two hundred twenty-one trillion, twenty billion, ten million, twenty-two thousand, two hundred two".