220000022010121 has 2 divisors, whose sum is σ = 220000022010122. Its totient is φ = 220000022010120.

The previous prime is 220000022010073. The next prime is 220000022010127. The reversal of 220000022010121 is 121010220000022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199153172762896 + 20846849247225 = 14112164^2 + 4565835^2 .

It is a cyclic number.

It is not a de Polignac number, because 220000022010121 - 2¹⁵ = 220000021977353 is a prime.

It is not a weakly prime, because it can be changed into another prime (220000022010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000011005060 + 110000011005061.

It is an arithmetic number, because the mean of its divisors is an integer number (110000011005061).

Almost surely, 2^{220000022010121} is an apocalyptic number.

It is an amenable number.

220000022010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000022010121 is an equidigital number, since it uses as much as digits as its factorization.

220000022010121 is an evil number, because the sum of its binary digits is even.

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

Adding to 220000022010121 its reverse (121010220000022), we get a palindrome (341010242010143).

The spelling of 220000022010121 in words is "two hundred twenty trillion, twenty-two million, ten thousand, one hundred twenty-one".