21301266525294 has 32 divisors (see below), whose sum is σ = 49682254291200. Its totient is φ = 6086076149496.

The previous prime is 21301266525289. The next prime is 21301266525353. The reversal of 21301266525294 is 49252566210312.

It is a super-2 number, since 2×21301266525294² (a number of 27 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 in 15 ways as a sum of consecutive naturals, for example, 5175232764 + ... + 5175236879.

It is an arithmetic number, because the mean of its divisors is an integer number (1552570446600).

Almost surely, 2^{21301266525294} is an apocalyptic number.

21301266525294 is an abundant number, since it is smaller than the sum of its proper divisors (28380987765906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301266525294 is a wasteful number, since it uses less digits than its factorization.

21301266525294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350469669 (or 10350469655 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 21301266525294 in words is "twenty-one trillion, three hundred one billion, two hundred sixty-six million, five hundred twenty-five thousand, two hundred ninety-four".