121222101011000 has 128 divisors (see below), whose sum is σ = 309453011712000. Its totient is φ = 44079902416000.

The previous prime is 121222101010981. The next prime is 121222101011003. The reversal of 121222101011000 is 110101222121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222101011003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 919963121 + ... + 920094879.

It is an arithmetic number, because the mean of its divisors is an integer number (2417601654000).

Almost surely, 2^{121222101011000} is an apocalyptic number.

121222101011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121222101011000 is an abundant number, since it is smaller than the sum of its proper divisors (188230910701000).

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

121222101011000 is a wasteful number, since it uses less digits than its factorization.

121222101011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215430 (or 215416 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121222101011000 its reverse (110101222121), we get a palindrome (121332202233121).

The spelling of 121222101011000 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, eleven thousand".