211101212202012 has 54 divisors (see below), whose sum is σ = 586537642638584. Its totient is φ = 63970064302320.

The previous prime is 211101212201993. The next prime is 211101212202017. The reversal of 211101212202012 is 210202212101112.

211101212202012 is a `hidden beast` number, since 211 + 10 + 1 + 21 + 220 + 201 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101212202017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24231080608 + ... + 24231089319.

Almost surely, 2^{211101212202012} is an apocalyptic number.

211101212202012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211101212202012 is an abundant number, since it is smaller than the sum of its proper divisors (375436430436572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211101212202012 is a wasteful number, since it uses less digits than its factorization.

211101212202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48462169959 (or 48462169943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211101212202012 its reverse (210202212101112), we get a palindrome (421303424303124).

The spelling of 211101212202012 in words is "two hundred eleven trillion, one hundred one billion, two hundred twelve million, two hundred two thousand, twelve".