211211102222010 has 256 divisors, whose sum is σ = 616185247680000. Its totient is φ = 51056714741760.

The previous prime is 211211102221943. The next prime is 211211102222117. The reversal of 211211102222010 is 10222201112112.

211211102222010 is a `hidden beast` number, since 21 + 1 + 211 + 10 + 222 + 201 + 0 = 666.

It is a super-2 number, since 2×211211102222010² (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 127 ways as a sum of consecutive naturals, for example, 3096312664 + ... + 3096380876.

It is an arithmetic number, because the mean of its divisors is an integer number (2406973623750).

Almost surely, 2^{211211102222010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211211102222010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308092623840000).

211211102222010 is an abundant number, since it is smaller than the sum of its proper divisors (404974145457990).

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

211211102222010 is a wasteful number, since it uses less digits than its factorization.

211211102222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71198 (or 71192 counting only the distinct ones).

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

Adding to 211211102222010 its reverse (10222201112112), we get a palindrome (221433303334122).

The spelling of 211211102222010 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred two million, two hundred twenty-two thousand, ten".