21106071050601 has 16 divisors (see below), whose sum is σ = 29400058013760. Its totient is φ = 13451006923200.

The previous prime is 21106071050579. The next prime is 21106071050651. The reversal of 21106071050601 is 10605017060112.

It is not a de Polignac number, because 21106071050601 - 2¹⁷ = 21106070919529 is a prime.

It is a super-2 number, since 2×21106071050601² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21106071050651) 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, 1200973975 + ... + 1200991548.

It is an arithmetic number, because the mean of its divisors is an integer number (1837503625860).

Almost surely, 2^{21106071050601} is an apocalyptic number.

It is an amenable number.

21106071050601 is a deficient number, since it is larger than the sum of its proper divisors (8293986963159).

21106071050601 is a wasteful number, since it uses less digits than its factorization.

21106071050601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401965656.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 21106071050601 in words is "twenty-one trillion, one hundred six billion, seventy-one million, fifty thousand, six hundred one".