11212012109977 has 12 divisors (see below), whose sum is σ = 13042601179920. Its totient is φ = 9610254477096.

The previous prime is 11212012109927. The next prime is 11212012110001. The reversal of 11212012109977 is 77990121021211.

It is not a de Polignac number, because 11212012109977 - 2²⁷ = 11211877892249 is a prime.

It is a super-3 number, since 3×11212012109977³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212012109927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17642298 + ... + 18266764.

It is an arithmetic number, because the mean of its divisors is an integer number (1086883431660).

Almost surely, 2^{11212012109977} is an apocalyptic number.

It is an amenable number.

11212012109977 is a deficient number, since it is larger than the sum of its proper divisors (1830589069943).

11212012109977 is an equidigital number, since it uses as much as digits as its factorization.

11212012109977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990900 (or 990893 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 43.

The spelling of 11212012109977 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred nine thousand, nine hundred seventy-seven".