211122212000000 has 252 divisors, whose sum is σ = 602020556538240. Its totient is φ = 72384748800000.

The previous prime is 211122211999991. The next prime is 211122212000017. The reversal of 211122212000000 is 212221112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 24229961 + ... + 31770039.

Almost surely, 2^{211122212000000} is an apocalyptic number.

211122212000000 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 211122212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301010278269120).

211122212000000 is an abundant number, since it is smaller than the sum of its proper divisors (390898344538240).

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

211122212000000 is an frugal number, since it uses more digits than its factorization.

211122212000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540132 (or 7540093 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211122212000000 its reverse (212221112), we get a palindrome (211122424221112).

The spelling of 211122212000000 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twelve million", and thus it is an aban number.