21101275994367 has 8 divisors (see below), whose sum is σ = 28135217030400. Its totient is φ = 14067426143960.

The previous prime is 21101275994333. The next prime is 21101275994443. The reversal of 21101275994367 is 76349957210112.

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 21101275994367 - 2¹² = 21101275990271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101275994167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22254609 + ... + 23183402.

It is an arithmetic number, because the mean of its divisors is an integer number (3516902128800).

Almost surely, 2^{21101275994367} is an apocalyptic number.

21101275994367 is a deficient number, since it is larger than the sum of its proper divisors (7033941036033).

21101275994367 is a wasteful number, since it uses less digits than its factorization.

21101275994367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45592813.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 21101275994367 in words is "twenty-one trillion, one hundred one billion, two hundred seventy-five million, nine hundred ninety-four thousand, three hundred sixty-seven".