210122212112211 has 32 divisors (see below), whose sum is σ = 327666387980800. Its totient is φ = 117265354504704.

The previous prime is 210122212112159. The next prime is 210122212112237. The reversal of 210122212112211 is 112211212221012.

It is not a de Polignac number, because 210122212112211 - 2⁹ = 210122212111699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210122212112251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3344860 + ... + 20770953.

It is an arithmetic number, because the mean of its divisors is an integer number (10239574624400).

Almost surely, 2^{210122212112211} is an apocalyptic number.

210122212112211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210122212112211 is a deficient number, since it is larger than the sum of its proper divisors (117544175868589).

210122212112211 is a wasteful number, since it uses less digits than its factorization.

210122212112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24125515.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 210122212112211 its reverse (112211212221012), we get a palindrome (322333424333223).

The spelling of 210122212112211 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, two hundred eleven".