21106612151007 has 16 divisors (see below), whose sum is σ = 28148071324800. Its totient is φ = 14068114216992.

The previous prime is 21106612150913. The next prime is 21106612151143. The reversal of 21106612151007 is 70015121660112.

It is not a de Polignac number, because 21106612151007 - 2¹⁵ = 21106612118239 is a prime.

It is a super-2 number, since 2×21106612151007² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21106612158007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324190744 + ... + 324255842.

It is an arithmetic number, because the mean of its divisors is an integer number (1759254457800).

Almost surely, 2^{21106612151007} is an apocalyptic number.

21106612151007 is a deficient number, since it is larger than the sum of its proper divisors (7041459173793).

21106612151007 is a wasteful number, since it uses less digits than its factorization.

21106612151007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86182.

The product of its (nonzero) digits is 5040, while the sum is 33.

The spelling of 21106612151007 in words is "twenty-one trillion, one hundred six billion, six hundred twelve million, one hundred fifty-one thousand, seven".