2120111121222 has 24 divisors (see below), whose sum is σ = 4604182829064. Its totient is φ = 705071594304.

The previous prime is 2120111121211. The next prime is 2120111121277. The reversal of 2120111121222 is 2221211110212.

2120111121222 is a `hidden beast` number, since 212 + 0 + 111 + 121 + 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 = 2120111121195 and 2120111121204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136001388 + ... + 136016975.

It is an arithmetic number, because the mean of its divisors is an integer number (191840951211).

Almost surely, 2^{2120111121222} is an apocalyptic number.

2120111121222 is an abundant number, since it is smaller than the sum of its proper divisors (2484071707842).

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

2120111121222 is a wasteful number, since it uses less digits than its factorization.

2120111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272018804 (or 272018801 counting only the distinct ones).

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

Adding to 2120111121222 its reverse (2221211110212), we get a palindrome (4341322231434).

The spelling of 2120111121222 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".