2110122221121 has 6 divisors (see below), whose sum is σ = 3047954319410. Its totient is φ = 1406748147408.

The previous prime is 2110122221087. The next prime is 2110122221147. The reversal of 2110122221121 is 1211222210112.

2110122221121 is a `hidden beast` number, since 211 + 0 + 1 + 222 + 211 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1786929971121 + 323192250000 = 1336761^2 + 568500^2 .

It is not a de Polignac number, because 2110122221121 - 2⁶ = 2110122221057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2110122221094 and 2110122221103.

It is not an unprimeable number, because it can be changed into a prime (2110122221161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117229012276 + ... + 117229012293.

Almost surely, 2^{2110122221121} is an apocalyptic number.

It is an amenable number.

2110122221121 is a deficient number, since it is larger than the sum of its proper divisors (937832098289).

2110122221121 is a wasteful number, since it uses less digits than its factorization.

2110122221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234458024575 (or 234458024572 counting only the distinct ones).

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

Adding to 2110122221121 its reverse (1211222210112), we get a palindrome (3321344431233).

The spelling of 2110122221121 in words is "two trillion, one hundred ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".