1122121020123 has 12 divisors (see below), whose sum is σ = 1620902760048. Its totient is φ = 748052394000.

The previous prime is 1122121020071. The next prime is 1122121020169. The reversal of 1122121020123 is 3210201212211.

1122121020123 is a `hidden beast` number, since 11 + 221 + 210 + 201 + 23 = 666.

It is not a de Polignac number, because 1122121020123 - 2²⁶ = 1122053911259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122121020096 and 1122121020105.

It is not an unprimeable number, because it can be changed into a prime (1122121020173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2104503 + ... + 2583248.

It is an arithmetic number, because the mean of its divisors is an integer number (135075230004).

Almost surely, 2^{1122121020123} is an apocalyptic number.

1122121020123 is a deficient number, since it is larger than the sum of its proper divisors (498781739925).

1122121020123 is a wasteful number, since it uses less digits than its factorization.

1122121020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714354 (or 4714351 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1122121020123 its reverse (3210201212211), we get a palindrome (4332322232334).

The spelling of 1122121020123 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty thousand, one hundred twenty-three".