121222002300 has 144 divisors (see below), whose sum is σ = 401008500480. Its totient is φ = 27696291840.

The previous prime is 121222002299. The next prime is 121222002311. The reversal of 121222002300 is 3200222121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121222002300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5636167 + ... + 5657633.

Almost surely, 2^121222002300 is an apocalyptic number.

121222002300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121222002300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200504250240).

121222002300 is an abundant number, since it is smaller than the sum of its proper divisors (279786498180).

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

121222002300 is a wasteful number, since it uses less digits than its factorization.

121222002300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24180 (or 24173 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121222002300 its reverse (3200222121), we get a palindrome (124422224421).

The spelling of 121222002300 in words is "one hundred twenty-one billion, two hundred twenty-two million, two thousand, three hundred".