121122222112012 has 24 divisors (see below), whose sum is σ = 231235284162960. Its totient is φ = 55055090972160.

The previous prime is 121122222112009. The next prime is 121122222112123. The reversal of 121122222112012 is 210211222221121.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 6312093 + ... + 16795444.

It is an arithmetic number, because the mean of its divisors is an integer number (9634803506790).

Almost surely, 2^{121122222112012} is an apocalyptic number.

It is an amenable number.

121122222112012 is a deficient number, since it is larger than the sum of its proper divisors (110113062050948).

121122222112012 is a wasteful number, since it uses less digits than its factorization.

121122222112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23226681 (or 23226679 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121122222112012 its reverse (210211222221121), we get a palindrome (331333444333133).

The spelling of 121122222112012 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, twelve".