10021511442 has 16 divisors (see below), whose sum is σ = 20052410112. Its totient is φ = 3338939280.

The previous prime is 10021511417. The next prime is 10021511471. The reversal of 10021511442 is 24411512001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377218 + ... + 402909.

It is an arithmetic number, because the mean of its divisors is an integer number (1253275632).

Almost surely, 2^10021511442 is an apocalyptic number.

10021511442 is an abundant number, since it is smaller than the sum of its proper divisors (10030898670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021511442 is a wasteful number, since it uses less digits than its factorization.

10021511442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782273.

The product of its (nonzero) digits is 320, while the sum is 21.

The spelling of 10021511442 in words is "ten billion, twenty-one million, five hundred eleven thousand, four hundred forty-two".