220002212050121 has 2 divisors, whose sum is σ = 220002212050122. Its totient is φ = 220002212050120.

The previous prime is 220002212050073. The next prime is 220002212050133. The reversal of 220002212050121 is 121050212200022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218342144724025 + 1660067326096 = 14776405^2 + 1288436^2 .

It is a cyclic number.

It is not a de Polignac number, because 220002212050121 - 2²² = 220002207855817 is a prime.

It is a super-2 number, since 2×220002212050121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220002212050093 and 220002212050102.

It is not a weakly prime, because it can be changed into another prime (220002212050021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110001106025060 + 110001106025061.

It is an arithmetic number, because the mean of its divisors is an integer number (110001106025061).

Almost surely, 2^{220002212050121} is an apocalyptic number.

It is an amenable number.

220002212050121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220002212050121 is an equidigital number, since it uses as much as digits as its factorization.

220002212050121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 220002212050121 its reverse (121050212200022), we get a palindrome (341052424250143).

The spelling of 220002212050121 in words is "two hundred twenty trillion, two billion, two hundred twelve million, fifty thousand, one hundred twenty-one".