21201410044 has 6 divisors (see below), whose sum is σ = 37102467584. Its totient is φ = 10600705020.

The previous prime is 21201410029. The next prime is 21201410081. The reversal of 21201410044 is 44001410212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2650176252 + ... + 2650176259.

Almost surely, 2^21201410044 is an apocalyptic number.

It is an amenable number.

21201410044 is a deficient number, since it is larger than the sum of its proper divisors (15901057540).

21201410044 is a wasteful number, since it uses less digits than its factorization.

21201410044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300352515 (or 5300352513 counting only the distinct ones).

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

Adding to 21201410044 its reverse (44001410212), we get a palindrome (65202820256).

The spelling of 21201410044 in words is "twenty-one billion, two hundred one million, four hundred ten thousand, forty-four".