21122058146 has 8 divisors (see below), whose sum is σ = 36209242560. Its totient is φ = 9052310628.

The previous prime is 21122058107. The next prime is 21122058193. The reversal of 21122058146 is 64185022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21122058146² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754359206 + ... + 754359233.

It is an arithmetic number, because the mean of its divisors is an integer number (4526155320).

Almost surely, 2^21122058146 is an apocalyptic number.

21122058146 is a deficient number, since it is larger than the sum of its proper divisors (15087184414).

21122058146 is a wasteful number, since it uses less digits than its factorization.

21122058146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508718448.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 21122058146 in words is "twenty-one billion, one hundred twenty-two million, fifty-eight thousand, one hundred forty-six".