121111222133330 has 64 divisors (see below), whose sum is σ = 256124224274688. Its totient is φ = 40650797064960.

The previous prime is 121111222133311. The next prime is 121111222133353. The reversal of 121111222133330 is 33331222111121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 121111222133330.

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, 28435859 + ... + 32416361.

It is an arithmetic number, because the mean of its divisors is an integer number (4001941004292).

Almost surely, 2^{121111222133330} is an apocalyptic number.

121111222133330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121111222133330 is an abundant number, since it is smaller than the sum of its proper divisors (135013002141358).

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

121111222133330 is a wasteful number, since it uses less digits than its factorization.

121111222133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001811.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121111222133330 its reverse (33331222111121), we get a palindrome (154442444244451).

The spelling of 121111222133330 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thirty-three thousand, three hundred thirty".