120202054540621 has 2 divisors, whose sum is σ = 120202054540622. Its totient is φ = 120202054540620.

The previous prime is 120202054540537. The next prime is 120202054540663. The reversal of 120202054540621 is 126045450202021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85989919955625 + 34212134584996 = 9273075^2 + 5849114^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202054540621 - 2⁹ = 120202054540109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120202054540681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101027270310 + 60101027270311.

It is an arithmetic number, because the mean of its divisors is an integer number (60101027270311).

Almost surely, 2^{120202054540621} is an apocalyptic number.

It is an amenable number.

120202054540621 is a deficient number, since it is larger than the sum of its proper divisors (1).

120202054540621 is an equidigital number, since it uses as much as digits as its factorization.

120202054540621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 120202054540621 in words is "one hundred twenty trillion, two hundred two billion, fifty-four million, five hundred forty thousand, six hundred twenty-one".