220202211110021 has 32 divisors (see below), whose sum is σ = 262809112688640. Its totient is φ = 180508305309696.

The previous prime is 220202211109987. The next prime is 220202211110023. The reversal of 220202211110021 is 120011112202022.

It is not a de Polignac number, because 220202211110021 - 2⁶ = 220202211109957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202211110023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32882405 + ... + 39008421.

It is an arithmetic number, because the mean of its divisors is an integer number (8212784771520).

Almost surely, 2^{220202211110021} is an apocalyptic number.

It is an amenable number.

220202211110021 is a deficient number, since it is larger than the sum of its proper divisors (42606901578619).

220202211110021 is a wasteful number, since it uses less digits than its factorization.

220202211110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127733.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220202211110021 its reverse (120011112202022), we get a palindrome (340213323312043).

The spelling of 220202211110021 in words is "two hundred twenty trillion, two hundred two billion, two hundred eleven million, one hundred ten thousand, twenty-one".