2111012122122 has 12 divisors (see below), whose sum is σ = 4573859597970. Its totient is φ = 703670707368.

The previous prime is 2111012122081. The next prime is 2111012122127. The reversal of 2111012122122 is 2212212101112.

It can be written as a sum of positive squares in only one way, i.e., 1902438145521 + 208573976601 = 1379289^2 + 456699^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 117278451229 = 2111012122122 / (2 + 1 + 1 + 1 + 0 + 1 + 2 + 1 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2111012122095 and 2111012122104.

It is not an unprimeable number, because it can be changed into a prime (2111012122127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58639225597 + ... + 58639225632.

Almost surely, 2^{2111012122122} is an apocalyptic number.

2111012122122 is an abundant number, since it is smaller than the sum of its proper divisors (2462847475848).

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

2111012122122 is a wasteful number, since it uses less digits than its factorization.

2111012122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117278451237 (or 117278451234 counting only the distinct ones).

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

Adding to 2111012122122 its reverse (2212212101112), we get a palindrome (4323224223234).

The spelling of 2111012122122 in words is "two trillion, one hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred twenty-two".