21106612151041 has 4 divisors (see below), whose sum is σ = 22217486474800. Its totient is φ = 19995737827284.

The previous prime is 21106612150913. The next prime is 21106612151143. The reversal of 21106612151041 is 14015121660112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21106612151041 - 2⁷ = 21106612150913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21106612150994 and 21106612151012.

It is not an unprimeable number, because it can be changed into a prime (21106612154041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555437161851 + ... + 555437161888.

It is an arithmetic number, because the mean of its divisors is an integer number (5554371618700).

Almost surely, 2^{21106612151041} is an apocalyptic number.

It is an amenable number.

21106612151041 is a deficient number, since it is larger than the sum of its proper divisors (1110874323759).

21106612151041 is a wasteful number, since it uses less digits than its factorization.

21106612151041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110874323758.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 21106612151041 in words is "twenty-one trillion, one hundred six billion, six hundred twelve million, one hundred fifty-one thousand, forty-one".