2112210222210 has 240 divisors, whose sum is σ = 6581723290560. Its totient is φ = 481929730560.

The previous prime is 2112210222209. The next prime is 2112210222229. The reversal of 2112210222210 is 122220122112.

It is a happy number.

2112210222210 is a `hidden beast` number, since 2 + 11 + 221 + 0 + 222 + 210 = 666.

It is a super-2 number, since 2×2112210222210² (a number of 25 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 119 ways as a sum of consecutive naturals, for example, 2164851 + ... + 2985129.

It is an arithmetic number, because the mean of its divisors is an integer number (27423847044).

Almost surely, 2^{2112210222210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112210222210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3290861645280).

2112210222210 is an abundant number, since it is smaller than the sum of its proper divisors (4469513068350).

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

2112210222210 is a wasteful number, since it uses less digits than its factorization.

2112210222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820343 (or 820317 counting only the distinct ones).

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

Adding to 2112210222210 its reverse (122220122112), we get a palindrome (2234430344322).

The spelling of 2112210222210 in words is "two trillion, one hundred twelve billion, two hundred ten million, two hundred twenty-two thousand, two hundred ten".