2221501420504 has 8 divisors (see below), whose sum is σ = 4165315163460. Its totient is φ = 1110750710248.

The previous prime is 2221501420483. The next prime is 2221501420513. The reversal of 2221501420504 is 4050241051222.

It is a happy number.

2221501420504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2221501420504² (a number of 25 digits) contains 22 as substring.

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, 138843838774 + ... + 138843838789.

Almost surely, 2^{2221501420504} is an apocalyptic number.

It is an amenable number.

2221501420504 is a deficient number, since it is larger than the sum of its proper divisors (1943813742956).

2221501420504 is a wasteful number, since it uses less digits than its factorization.

2221501420504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277687677569 (or 277687677565 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 2221501420504 its reverse (4050241051222), we get a palindrome (6271742471726).

The spelling of 2221501420504 in words is "two trillion, two hundred twenty-one billion, five hundred one million, four hundred twenty thousand, five hundred four".