10021420144 has 40 divisors (see below), whose sum is σ = 19695935312. Its totient is φ = 4938693120.

The previous prime is 10021420111. The next prime is 10021420153. The reversal of 10021420144 is 44102412001.

It is a congruent number.

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, 3272374 + ... + 3275434.

Almost surely, 2^10021420144 is an apocalyptic number.

It is an amenable number.

10021420144 is a deficient number, since it is larger than the sum of its proper divisors (9674515168).

10021420144 is a wasteful number, since it uses less digits than its factorization.

10021420144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945 (or 5939 counting only the distinct ones).

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

Adding to 10021420144 its reverse (44102412001), we get a palindrome (54123832145).

The spelling of 10021420144 in words is "ten billion, twenty-one million, four hundred twenty thousand, one hundred forty-four".