1121022122121 has 24 divisors (see below), whose sum is σ = 1767246994656. Its totient is φ = 679104311040.

The previous prime is 1121022122093. The next prime is 1121022122149. The reversal of 1121022122121 is 1212212201211.

1121022122121 is a `hidden beast` number, since 11 + 210 + 221 + 221 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1121022122093) and next prime (1121022122149).

It is not a de Polignac number, because 1121022122121 - 2¹⁸ = 1121021859977 is a prime.

It is a super-3 number, since 3×1121022122121³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121022122094 and 1121022122103.

It is not an unprimeable number, because it can be changed into a prime (1121022124121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2302120 + ... + 2746233.

It is an arithmetic number, because the mean of its divisors is an integer number (73635291444).

Almost surely, 2^{1121022122121} is an apocalyptic number.

1121022122121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121022122121 is a deficient number, since it is larger than the sum of its proper divisors (646224872535).

1121022122121 is a wasteful number, since it uses less digits than its factorization.

1121022122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050613 (or 5050610 counting only the distinct ones).

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

Adding to 1121022122121 its reverse (1212212201211), we get a palindrome (2333234323332).

The spelling of 1121022122121 in words is "one trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".