211020029979 has 16 divisors (see below), whose sum is σ = 306965890560. Its totient is φ = 127879400160.

The previous prime is 211020029921. The next prime is 211020029981. The reversal of 211020029979 is 979920020112.

It is not a de Polignac number, because 211020029979 - 2¹⁶ = 211019964443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211020029979.

It is not an unprimeable number, because it can be changed into a prime (211020049979) 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, 90942 + ... + 655980.

It is an arithmetic number, because the mean of its divisors is an integer number (19185368160).

Almost surely, 2^211020029979 is an apocalyptic number.

211020029979 is a deficient number, since it is larger than the sum of its proper divisors (95945860581).

211020029979 is a wasteful number, since it uses less digits than its factorization.

211020029979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576370.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 211020029979 in words is "two hundred eleven billion, twenty million, twenty-nine thousand, nine hundred seventy-nine".