220211221101210 has 48 divisors (see below), whose sum is σ = 572721994586664. Its totient is φ = 58705267193856.

The previous prime is 220211221101187. The next prime is 220211221101217. The reversal of 220211221101210 is 12101122112022.

220211221101210 is a `hidden beast` number, since 2 + 20 + 211 + 221 + 1 + 0 + 1 + 210 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 209028356742969 + 11182864358241 = 14457813^2 + 3344079^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220211221101217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368973087 + ... + 369569426.

Almost surely, 2^{220211221101210} is an apocalyptic number.

220211221101210 is an abundant number, since it is smaller than the sum of its proper divisors (352510773485454).

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

220211221101210 is a wasteful number, since it uses less digits than its factorization.

220211221101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738545839 (or 738545836 counting only the distinct ones).

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

Adding to 220211221101210 its reverse (12101122112022), we get a palindrome (232312343213232).

The spelling of 220211221101210 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twenty-one million, one hundred one thousand, two hundred ten".