220101197903969 has 2 divisors, whose sum is σ = 220101197903970. Its totient is φ = 220101197903968.

The previous prime is 220101197903861. The next prime is 220101197903989. The reversal of 220101197903969 is 969309791101022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154755590406400 + 65345607497569 = 12440080^2 + 8083663^2 .

It is a cyclic number.

It is not a de Polignac number, because 220101197903969 - 2¹⁶ = 220101197838433 is a prime.

It is a super-2 number, since 2×220101197903969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220101197903989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050598951984 + 110050598951985.

It is an arithmetic number, because the mean of its divisors is an integer number (110050598951985).

Almost surely, 2^{220101197903969} is an apocalyptic number.

It is an amenable number.

220101197903969 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101197903969 is an equidigital number, since it uses as much as digits as its factorization.

220101197903969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 59.

The spelling of 220101197903969 in words is "two hundred twenty trillion, one hundred one billion, one hundred ninety-seven million, nine hundred three thousand, nine hundred sixty-nine".