221011210122 has 32 divisors (see below), whose sum is σ = 443958249024. Its totient is φ = 73348195200.

The previous prime is 221011210117. The next prime is 221011210151. The reversal of 221011210122 is 221012110122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2032597 + ... + 2138567.

It is an arithmetic number, because the mean of its divisors is an integer number (13873695282).

Almost surely, 2^221011210122 is an apocalyptic number.

221011210122 is an abundant number, since it is smaller than the sum of its proper divisors (222947038902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221011210122 is a wasteful number, since it uses less digits than its factorization.

221011210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107494.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221011210122 its reverse (221012110122), we get a palindrome (442023320244).

The spelling of 221011210122 in words is "two hundred twenty-one billion, eleven million, two hundred ten thousand, one hundred twenty-two".