2101102122222 has 48 divisors (see below), whose sum is σ = 4709519100000. Its totient is φ = 676194910272.

The previous prime is 2101102122181. The next prime is 2101102122277. The reversal of 2101102122222 is 2222212011012.

It is a happy number.

2101102122222 is a `hidden beast` number, since 210 + 110 + 2 + 122 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2101102122195 and 2101102122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26372904 + ... + 26452452.

It is an arithmetic number, because the mean of its divisors is an integer number (98114981250).

Almost surely, 2^{2101102122222} is an apocalyptic number.

2101102122222 is an abundant number, since it is smaller than the sum of its proper divisors (2608416977778).

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

2101102122222 is a wasteful number, since it uses less digits than its factorization.

2101102122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130185 (or 130182 counting only the distinct ones).

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

Adding to 2101102122222 its reverse (2222212011012), we get a palindrome (4323314133234).

It can be divided in two parts, 210110 and 2122222, that added together give a palindrome (2332332).

The spelling of 2101102122222 in words is "two trillion, one hundred one billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-two".