2102211212222 has 48 divisors (see below), whose sum is σ = 3475858176000. Its totient is φ = 952848296400.

The previous prime is 2102211212219. The next prime is 2102211212237. The reversal of 2102211212222 is 2222121122012.

It is a junction number, because it is equal to n+sod(n) for n = 2102211212194 and 2102211212203.

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, 132048779 + ... + 132064697.

It is an arithmetic number, because the mean of its divisors is an integer number (72413712000).

Almost surely, 2^{2102211212222} is an apocalyptic number.

2102211212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102211212222 is a deficient number, since it is larger than the sum of its proper divisors (1373646963778).

2102211212222 is a wasteful number, since it uses less digits than its factorization.

2102211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17453 (or 17442 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2102211212222 its reverse (2222121122012), we get a palindrome (4324332334234).

The spelling of 2102211212222 in words is "two trillion, one hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".