10122021442 has 48 divisors (see below), whose sum is σ = 17604387720. Its totient is φ = 4347273216.

The previous prime is 10122021431. The next prime is 10122021499. The reversal of 10122021442 is 24412022101.

It can be written as a sum of positive squares in 12 ways, for example, as 217592001 + 9904429441 = 14751^2 + 99521^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501498 + ... + 521290.

Almost surely, 2^10122021442 is an apocalyptic number.

10122021442 is a deficient number, since it is larger than the sum of its proper divisors (7482366278).

10122021442 is a wasteful number, since it uses less digits than its factorization.

10122021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19927 (or 19914 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10122021442 its reverse (24412022101), we get a palindrome (34534043543).

The spelling of 10122021442 in words is "ten billion, one hundred twenty-two million, twenty-one thousand, four hundred forty-two".