2021202000157 has 2 divisors, whose sum is σ = 2021202000158. Its totient is φ = 2021202000156.

The previous prime is 2021202000143. The next prime is 2021202000193. The reversal of 2021202000157 is 7510002021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1211983011801 + 809218988356 = 1100901^2 + 899566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021202000157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021202001157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010601000078 + 1010601000079.

It is an arithmetic number, because the mean of its divisors is an integer number (1010601000079).

Almost surely, 2^{2021202000157} is an apocalyptic number.

It is an amenable number.

2021202000157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021202000157 is an equidigital number, since it uses as much as digits as its factorization.

2021202000157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

Adding to 2021202000157 its reverse (7510002021202), we get a palindrome (9531204021359).

The spelling of 2021202000157 in words is "two trillion, twenty-one billion, two hundred two million, one hundred fifty-seven", and thus it is an aban number.