221120102010202 has 4 divisors (see below), whose sum is σ = 331680153015306. Its totient is φ = 110560051005100.

The previous prime is 221120102010179. The next prime is 221120102010211. The reversal of 221120102010202 is 202010201021122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220853155154641 + 266946855561 = 14861129^2 + 516669^2 .

It is a super-2 number, since 2×221120102010202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280025502549 + ... + 55280025502552.

Almost surely, 2^{221120102010202} is an apocalyptic number.

221120102010202 is a deficient number, since it is larger than the sum of its proper divisors (110560051005104).

221120102010202 is a wasteful number, since it uses less digits than its factorization.

221120102010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110560051005103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221120102010202 its reverse (202010201021122), we get a palindrome (423130303031324).

The spelling of 221120102010202 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred two million, ten thousand, two hundred two".