220010022121 has 4 divisors (see below), whose sum is σ = 220184773200. Its totient is φ = 219835271044.

The previous prime is 220010022101. The next prime is 220010022137. The reversal of 220010022121 is 121220010022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220010022121 - 2¹¹ = 220010020073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220010022101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87373651 + ... + 87376168.

It is an arithmetic number, because the mean of its divisors is an integer number (55046193300).

Almost surely, 2^220010022121 is an apocalyptic number.

It is an amenable number.

220010022121 is a deficient number, since it is larger than the sum of its proper divisors (174751079).

220010022121 is a wasteful number, since it uses less digits than its factorization.

220010022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174751078.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220010022121 its reverse (121220010022), we get a palindrome (341230032143).

It can be divided in two parts, 220010022 and 121, that multiplied together give a palindrome (26621212662).

The spelling of 220010022121 in words is "two hundred twenty billion, ten million, twenty-two thousand, one hundred twenty-one".