121222002022000 has 320 divisors, whose sum is σ = 331984771043328. Its totient is φ = 42412145280000.

The previous prime is 121222002021977. The next prime is 121222002022061. The reversal of 121222002022000 is 220200222121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117472287 + ... + 118499713.

Almost surely, 2^{121222002022000} is an apocalyptic number.

121222002022000 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 121222002022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165992385521664).

121222002022000 is an abundant number, since it is smaller than the sum of its proper divisors (210762769021328).

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

121222002022000 is a wasteful number, since it uses less digits than its factorization.

121222002022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027665 (or 1027649 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 121222002022000 its reverse (220200222121), we get a palindrome (121442202244121).

The spelling of 121222002022000 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two million, twenty-two thousand".