211212112120002 has 24 divisors (see below), whose sum is σ = 523001420487936. Its totient is φ = 60346317748536.

The previous prime is 211212112120001. The next prime is 211212112120039. The reversal of 211212112120002 is 200021211212112.

211212112120002 is a `hidden beast` number, since 211 + 21 + 211 + 21 + 200 + 0 + 2 = 666.

It is a super-2 number, since 2×211212112120002² (a number of 29 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (211212112120001) 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, 838143301938 + ... + 838143302189.

It is an arithmetic number, because the mean of its divisors is an integer number (21791725853664).

Almost surely, 2^{211212112120002} is an apocalyptic number.

211212112120002 is an abundant number, since it is smaller than the sum of its proper divisors (311789308367934).

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

211212112120002 is a wasteful number, since it uses less digits than its factorization.

211212112120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676286604142 (or 1676286604139 counting only the distinct ones).

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

Adding to 211212112120002 its reverse (200021211212112), we get a palindrome (411233323332114).

The spelling of 211212112120002 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, two".