9021200022101 has 2 divisors, whose sum is σ = 9021200022102. Its totient is φ = 9021200022100.

The previous prime is 9021200022053. The next prime is 9021200022143. The reversal of 9021200022101 is 1012200021209.

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., 7760068776100 + 1261131246001 = 2785690^2 + 1123001^2 .

It is a cyclic number.

It is not a de Polignac number, because 9021200022101 - 2³⁴ = 9004020152917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9021200022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510600011050 + 4510600011051.

It is an arithmetic number, because the mean of its divisors is an integer number (4510600011051).

Almost surely, 2^{9021200022101} is an apocalyptic number.

It is an amenable number.

9021200022101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9021200022101 is an equidigital number, since it uses as much as digits as its factorization.

9021200022101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 9021200022101 in words is "nine trillion, twenty-one billion, two hundred million, twenty-two thousand, one hundred one".