220201100220989 has 2 divisors, whose sum is σ = 220201100220990. Its totient is φ = 220201100220988.

The previous prime is 220201100220911. The next prime is 220201100221019. The reversal of 220201100220989 is 989022001102022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179637996468100 + 40563103752889 = 13402910^2 + 6368917^2 .

It is a cyclic number.

It is not a de Polignac number, because 220201100220989 - 2³⁶ = 220132380744253 is a prime.

It is a super-2 number, since 2×220201100220989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220201100220589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100550110494 + 110100550110495.

It is an arithmetic number, because the mean of its divisors is an integer number (110100550110495).

Almost surely, 2^{220201100220989} is an apocalyptic number.

It is an amenable number.

220201100220989 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201100220989 is an equidigital number, since it uses as much as digits as its factorization.

220201100220989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 220201100220989 in words is "two hundred twenty trillion, two hundred one billion, one hundred million, two hundred twenty thousand, nine hundred eighty-nine".