2101212022222 has 16 divisors (see below), whose sum is σ = 3202387136640. Its totient is φ = 1033784222328.

The previous prime is 2101212022219. The next prime is 2101212022223. The reversal of 2101212022222 is 2222202121012.

It is a super-3 number, since 3×2101212022222³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2101212022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101212022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8522722 + ... + 8765797.

It is an arithmetic number, because the mean of its divisors is an integer number (200149196040).

Almost surely, 2^{2101212022222} is an apocalyptic number.

2101212022222 is a deficient number, since it is larger than the sum of its proper divisors (1101175114418).

2101212022222 is a wasteful number, since it uses less digits than its factorization.

2101212022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17289495.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2101212022222 its reverse (2222202121012), we get a palindrome (4323414143234).

The spelling of 2101212022222 in words is "two trillion, one hundred one billion, two hundred twelve million, twenty-two thousand, two hundred twenty-two".