10402204021 has 8 divisors (see below), whose sum is σ = 11349216288. Its totient is φ = 9455418000.

The previous prime is 10402204009. The next prime is 10402204027. The reversal of 10402204021 is 12040220401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10402204021 - 2⁹ = 10402203509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10402203986 and 10402204004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402204027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47991 + ... + 152011.

It is an arithmetic number, because the mean of its divisors is an integer number (1418652036).

Almost surely, 2^10402204021 is an apocalyptic number.

10402204021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10402204021 is a deficient number, since it is larger than the sum of its proper divisors (947012267).

10402204021 is a wasteful number, since it uses less digits than its factorization.

10402204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113123.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10402204021 its reverse (12040220401), we get a palindrome (22442424422).

The spelling of 10402204021 in words is "ten billion, four hundred two million, two hundred four thousand, twenty-one".