200021211010157 has 2 divisors, whose sum is σ = 200021211010158. Its totient is φ = 200021211010156.

The previous prime is 200021211010141. The next prime is 200021211010163. The reversal of 200021211010157 is 751010112120002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162706632433801 + 37314578576356 = 12755651^2 + 6108566^2 .

It is a cyclic number.

It is not a de Polignac number, because 200021211010157 - 2⁴ = 200021211010141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021211060157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010605505078 + 100010605505079.

It is an arithmetic number, because the mean of its divisors is an integer number (100010605505079).

Almost surely, 2^{200021211010157} is an apocalyptic number.

It is an amenable number.

200021211010157 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021211010157 is an equidigital number, since it uses as much as digits as its factorization.

200021211010157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 200021211010157 its reverse (751010112120002), we get a palindrome (951031323130159).

The spelling of 200021211010157 in words is "two hundred trillion, twenty-one billion, two hundred eleven million, ten thousand, one hundred fifty-seven".