1200120021122 has 48 divisors (see below), whose sum is σ = 2083256246400. Its totient is φ = 516698028000.

The previous prime is 1200120021109. The next prime is 1200120021157. The reversal of 1200120021122 is 2211200210021.

It is a super-2 number, since 2×1200120021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200120021097 and 1200120021106.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 26825372 + ... + 26870072.

It is an arithmetic number, because the mean of its divisors is an integer number (43401171800).

Almost surely, 2^{1200120021122} is an apocalyptic number.

1200120021122 is a deficient number, since it is larger than the sum of its proper divisors (883136225278).

1200120021122 is a wasteful number, since it uses less digits than its factorization.

1200120021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50583 (or 50572 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200120021122 its reverse (2211200210021), we get a palindrome (3411320231143).

The spelling of 1200120021122 in words is "one trillion, two hundred billion, one hundred twenty million, twenty-one thousand, one hundred twenty-two".