121022012102200 has 144 divisors (see below), whose sum is σ = 309337816659480. Its totient is φ = 43999956000000.

The previous prime is 121022012102143. The next prime is 121022012102237. The reversal of 121022012102200 is 2201210220121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 132669655 + ... + 133578745.

Almost surely, 2^{121022012102200} is an apocalyptic number.

121022012102200 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 121022012102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154668908329740).

121022012102200 is an abundant number, since it is smaller than the sum of its proper divisors (188315804557280).

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

121022012102200 is a wasteful number, since it uses less digits than its factorization.

121022012102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914630 (or 914610 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022012102200 its reverse (2201210220121), we get a palindrome (123223222322321).

The spelling of 121022012102200 in words is "one hundred twenty-one trillion, twenty-two billion, twelve million, one hundred two thousand, two hundred".