121122222112010 has 256 divisors, whose sum is σ = 267781820866560. Its totient is φ = 38566111288320.

The previous prime is 121122222112009. The next prime is 121122222112123. The reversal of 121122222112010 is 10211222221121.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5472460904 + ... + 5472483036.

It is an arithmetic number, because the mean of its divisors is an integer number (1046022737760).

Almost surely, 2^{121122222112010} is an apocalyptic number.

121122222112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122222112010 is an abundant number, since it is smaller than the sum of its proper divisors (146659598754550).

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

121122222112010 is a wasteful number, since it uses less digits than its factorization.

121122222112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23173.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121122222112010 its reverse (10211222221121), we get a palindrome (131333444333131).

The spelling of 121122222112010 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, ten".