2102110222212 has 480 divisors, whose sum is σ = 7488548981760. Its totient is φ = 496474894080.

The previous prime is 2102110222171. The next prime is 2102110222231. The reversal of 2102110222212 is 2122220112012.

It is a happy number.

2102110222212 is a `hidden beast` number, since 21 + 0 + 211 + 0 + 222 + 212 = 666.

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 159 ways as a sum of consecutive naturals, for example, 21681339 + ... + 21778077.

It is an arithmetic number, because the mean of its divisors is an integer number (15601143712).

Almost surely, 2^{2102110222212} is an apocalyptic number.

2102110222212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102110222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3744274490880).

2102110222212 is an abundant number, since it is smaller than the sum of its proper divisors (5386438759548).

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

2102110222212 is a wasteful number, since it uses less digits than its factorization.

2102110222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96853 (or 96842 counting only the distinct ones).

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

Adding to 2102110222212 its reverse (2122220112012), we get a palindrome (4224330334224).

The spelling of 2102110222212 in words is "two trillion, one hundred two billion, one hundred ten million, two hundred twenty-two thousand, two hundred twelve".