121420212037 has 2 divisors, whose sum is σ = 121420212038. Its totient is φ = 121420212036.

The previous prime is 121420212031. The next prime is 121420212113. The reversal of 121420212037 is 730212024121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79569690561 + 41850521476 = 282081^2 + 204574^2 .

It is a cyclic number.

It is not a de Polignac number, because 121420212037 - 2⁷ = 121420211909 is a prime.

It is a super-2 number, since 2×121420212037² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121420212031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60710106018 + 60710106019.

It is an arithmetic number, because the mean of its divisors is an integer number (60710106019).

Almost surely, 2^121420212037 is an apocalyptic number.

It is an amenable number.

121420212037 is a deficient number, since it is larger than the sum of its proper divisors (1).

121420212037 is an equidigital number, since it uses as much as digits as its factorization.

121420212037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 121420212037 its reverse (730212024121), we get a palindrome (851632236158).

The spelling of 121420212037 in words is "one hundred twenty-one billion, four hundred twenty million, two hundred twelve thousand, thirty-seven".