1200120001122 has 64 divisors (see below), whose sum is σ = 2828960918784. Its totient is φ = 332239656960.

The previous prime is 1200120001061. The next prime is 1200120001147. The reversal of 1200120001122 is 2211000210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200120001098 and 1200120001107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1227723 + ... + 1976750.

It is an arithmetic number, because the mean of its divisors is an integer number (44202514356).

Almost surely, 2^{1200120001122} is an apocalyptic number.

1200120001122 is an abundant number, since it is smaller than the sum of its proper divisors (1628840917662).

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

1200120001122 is a wasteful number, since it uses less digits than its factorization.

1200120001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204763.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200120001122 its reverse (2211000210021), we get a palindrome (3411120211143).

The spelling of 1200120001122 in words is "one trillion, two hundred billion, one hundred twenty million, one thousand, one hundred twenty-two".