220120122100189 has 2 divisors, whose sum is σ = 220120122100190. Its totient is φ = 220120122100188.

The previous prime is 220120122100171. The next prime is 220120122100223. The reversal of 220120122100189 is 981001221021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123406370580964 + 96713751519225 = 11108842^2 + 9834315^2 .

It is a cyclic number.

It is not a de Polignac number, because 220120122100189 - 2⁵ = 220120122100157 is a prime.

It is a super-2 number, since 2×220120122100189² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220120122100189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220120122100169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060061050094 + 110060061050095.

It is an arithmetic number, because the mean of its divisors is an integer number (110060061050095).

Almost surely, 2^{220120122100189} is an apocalyptic number.

It is an amenable number.

220120122100189 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120122100189 is an equidigital number, since it uses as much as digits as its factorization.

220120122100189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 220120122100189 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty-two million, one hundred thousand, one hundred eighty-nine".