211012099977 has 16 divisors (see below), whose sum is σ = 329019975680. Its totient is φ = 117774194832.

The previous prime is 211012099957. The next prime is 211012099979. The reversal of 211012099977 is 779990210112.

It is not a de Polignac number, because 211012099977 - 2²² = 211007905673 is a prime.

It is a super-2 number, since 2×211012099977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012099979) 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 15 ways as a sum of consecutive naturals, for example, 116838577 + ... + 116840382.

It is an arithmetic number, because the mean of its divisors is an integer number (20563748480).

Almost surely, 2^211012099977 is an apocalyptic number.

It is an amenable number.

211012099977 is a deficient number, since it is larger than the sum of its proper divisors (118007875703).

211012099977 is a wasteful number, since it uses less digits than its factorization.

211012099977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233679012.

The product of its (nonzero) digits is 142884, while the sum is 48.

The spelling of 211012099977 in words is "two hundred eleven billion, twelve million, ninety-nine thousand, nine hundred seventy-seven".