211312120000 has 140 divisors (see below), whose sum is σ = 540891309376. Its totient is φ = 81797760000.

The previous prime is 211312119979. The next prime is 211312120001. The reversal of 211312120000 is 21213112.

It is not an unprimeable number, because it can be changed into a prime (211312120001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1154794 + ... + 1325206.

Almost surely, 2^211312120000 is an apocalyptic number.

211312120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211312120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270445654688).

211312120000 is an abundant number, since it is smaller than the sum of its proper divisors (329579189376).

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

211312120000 is an equidigital number, since it uses as much as digits as its factorization.

211312120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170476 (or 170451 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 211312120000 its reverse (21213112), we get a palindrome (211333333112).

The spelling of 211312120000 in words is "two hundred eleven billion, three hundred twelve million, one hundred twenty thousand".