220201202001961 has 2 divisors, whose sum is σ = 220201202001962. Its totient is φ = 220201202001960.

The previous prime is 220201202001919. The next prime is 220201202002057. The reversal of 220201202001961 is 169100202102022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220096332894736 + 104869107225 = 14835644^2 + 323835^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201202001961 - 2¹¹ = 220201201999913 is a prime.

It is a super-2 number, since 2×220201202001961² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220201202101961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100601000980 + 110100601000981.

It is an arithmetic number, because the mean of its divisors is an integer number (110100601000981).

Almost surely, 2^{220201202001961} is an apocalyptic number.

It is an amenable number.

220201202001961 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201202001961 is an equidigital number, since it uses as much as digits as its factorization.

220201202001961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 220201202001961 its reverse (169100202102022), we get a palindrome (389301404103983).

The spelling of 220201202001961 in words is "two hundred twenty trillion, two hundred one billion, two hundred two million, one thousand, nine hundred sixty-one".