2111202111222 has 64 divisors (see below), whose sum is σ = 4718307222720. Its totient is φ = 699723360000.

The previous prime is 2111202111181. The next prime is 2111202111257. The reversal of 2111202111222 is 2221112021112.

2111202111222 is a `hidden beast` number, since 211 + 1 + 20 + 211 + 1 + 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 = 2111202111195 and 2111202111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68412348 + ... + 68443200.

It is an arithmetic number, because the mean of its divisors is an integer number (73723550355).

Almost surely, 2^{2111202111222} is an apocalyptic number.

2111202111222 is an abundant number, since it is smaller than the sum of its proper divisors (2607105111498).

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

2111202111222 is a wasteful number, since it uses less digits than its factorization.

2111202111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38046 (or 38040 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111202111222 its reverse (2221112021112), we get a palindrome (4332314132334).

It can be divided in two parts, 21112021112 and 22, that multiplied together give a palindrome (464464464464).

The spelling of 2111202111222 in words is "two trillion, one hundred eleven billion, two hundred two million, one hundred eleven thousand, two hundred twenty-two".