10201002122 has 4 divisors (see below), whose sum is σ = 15301503186. Its totient is φ = 5100501060.

The previous prime is 10201002109. The next prime is 10201002139. The reversal of 10201002122 is 22120010201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9036213481 + 1164788641 = 95059^2 + 34129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550250529 + ... + 2550250532.

Almost surely, 2^10201002122 is an apocalyptic number.

10201002122 is a deficient number, since it is larger than the sum of its proper divisors (5100501064).

10201002122 is an equidigital number, since it uses as much as digits as its factorization.

10201002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100501063.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10201002122 its reverse (22120010201), we get a palindrome (32321012323).

The spelling of 10201002122 in words is "ten billion, two hundred one million, two thousand, one hundred twenty-two".