10121421004 has 6 divisors (see below), whose sum is σ = 17712486764. Its totient is φ = 5060710500.

The previous prime is 10121420927. The next prime is 10121421029. The reversal of 10121421004 is 40012412101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265177622 + ... + 1265177629.

Almost surely, 2^10121421004 is an apocalyptic number.

It is an amenable number.

10121421004 is a deficient number, since it is larger than the sum of its proper divisors (7591065760).

10121421004 is a wasteful number, since it uses less digits than its factorization.

10121421004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530355255 (or 2530355253 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10121421004 its reverse (40012412101), we get a palindrome (50133833105).

The spelling of 10121421004 in words is "ten billion, one hundred twenty-one million, four hundred twenty-one thousand, four".