211202021112210 has 160 divisors (see below), whose sum is σ = 579012778757952. Its totient is φ = 55219788374400.

The previous prime is 211202021112197. The next prime is 211202021112239. The reversal of 211202021112210 is 12211120202112.

211202021112210 is a `hidden beast` number, since 21 + 120 + 202 + 1 + 112 + 210 = 666.

It is a super-2 number, since 2×211202021112210² (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 79 ways as a sum of consecutive naturals, for example, 60596157 + ... + 63986703.

Almost surely, 2^{211202021112210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211202021112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289506389378976).

211202021112210 is an abundant number, since it is smaller than the sum of its proper divisors (367810757645742).

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

211202021112210 is a wasteful number, since it uses less digits than its factorization.

211202021112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392070 (or 3392061 counting only the distinct ones).

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

Adding to 211202021112210 its reverse (12211120202112), we get a palindrome (223413141314322).

The spelling of 211202021112210 in words is "two hundred eleven trillion, two hundred two billion, twenty-one million, one hundred twelve thousand, two hundred ten".