122021222001989 has 2 divisors, whose sum is σ = 122021222001990. Its totient is φ = 122021222001988.

The previous prime is 122021222001949. The next prime is 122021222002079. The reversal of 122021222001989 is 989100222120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85395304757764 + 36625917244225 = 9240958^2 + 6051935^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021222001989 - 2¹² = 122021221997893 is a prime.

It is a super-3 number, since 3×122021222001989³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021222001949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010611000994 + 61010611000995.

It is an arithmetic number, because the mean of its divisors is an integer number (61010611000995).

Almost surely, 2^{122021222001989} is an apocalyptic number.

It is an amenable number.

122021222001989 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021222001989 is an equidigital number, since it uses as much as digits as its factorization.

122021222001989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 122021222001989 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, one thousand, nine hundred eighty-nine".