21150701204 has 12 divisors (see below), whose sum is σ = 38207718528. Its totient is φ = 10234210200.

The previous prime is 21150701203. The next prime is 21150701237. The reversal of 21150701204 is 40210705112.

It is a super-2 number, since 2×21150701204² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21150701204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21150701203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85284962 + ... + 85285209.

It is an arithmetic number, because the mean of its divisors is an integer number (3183976544).

Almost surely, 2^21150701204 is an apocalyptic number.

It is an amenable number.

21150701204 is a deficient number, since it is larger than the sum of its proper divisors (17057017324).

21150701204 is a wasteful number, since it uses less digits than its factorization.

21150701204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170570206 (or 170570204 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The spelling of 21150701204 in words is "twenty-one billion, one hundred fifty million, seven hundred one thousand, two hundred four".