122002221137 has 2 divisors, whose sum is σ = 122002221138. Its totient is φ = 122002221136.

The previous prime is 122002221109. The next prime is 122002221217. The reversal of 122002221137 is 731122200221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87921738256 + 34080482881 = 296516^2 + 184609^2 .

It is a cyclic number.

It is not a de Polignac number, because 122002221137 - 2¹⁰ = 122002220113 is a prime.

It is a super-2 number, since 2×122002221137² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122002221037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001110568 + 61001110569.

It is an arithmetic number, because the mean of its divisors is an integer number (61001110569).

Almost surely, 2^122002221137 is an apocalyptic number.

It is an amenable number.

122002221137 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002221137 is an equidigital number, since it uses as much as digits as its factorization.

122002221137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 122002221137 its reverse (731122200221), we get a palindrome (853124421358).

The spelling of 122002221137 in words is "one hundred twenty-two billion, two million, two hundred twenty-one thousand, one hundred thirty-seven".