211212102222000 has 480 divisors, whose sum is σ = 823471812573696. Its totient is φ = 50012165952000.

The previous prime is 211212102221977. The next prime is 211212102222053. The reversal of 211212102222000 is 222201212112.

It is a happy number.

211212102222000 is a `hidden beast` number, since 2 + 11 + 21 + 210 + 222 + 200 + 0 = 666.

It is a super-2 number, since 2×211212102222000² (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 an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3889812 + ... + 20917811.

Almost surely, 2^{211212102222000} is an apocalyptic number.

211212102222000 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 211212102222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411735906286848).

211212102222000 is an abundant number, since it is smaller than the sum of its proper divisors (612259710351696).

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

211212102222000 is a wasteful number, since it uses less digits than its factorization.

211212102222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24807706 (or 24807687 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211212102222000 its reverse (222201212112), we get a palindrome (211434303434112).

The spelling of 211212102222000 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred two million, two hundred twenty-two thousand".