1000122211122 has 16 divisors (see below), whose sum is σ = 2003835532032. Its totient is φ = 332775552080.

The previous prime is 1000122211111. The next prime is 1000122211157. The reversal of 1000122211122 is 2211122210001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149625954 + ... + 149632637.

It is an arithmetic number, because the mean of its divisors is an integer number (125239720752).

Almost surely, 2^{1000122211122} is an apocalyptic number.

1000122211122 is an abundant number, since it is smaller than the sum of its proper divisors (1003713320910).

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

1000122211122 is a wasteful number, since it uses less digits than its factorization.

1000122211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299259153.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1000122211122 its reverse (2211122210001), we get a palindrome (3211244421123).

The spelling of 1000122211122 in words is "one trillion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".