100120121222200 has 24 divisors (see below), whose sum is σ = 232779281842080. Its totient is φ = 40048048488800.

The previous prime is 100120121222171. The next prime is 100120121222243. The reversal of 100120121222200 is 2222121021001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250300302856 + ... + 250300303255.

It is an arithmetic number, because the mean of its divisors is an integer number (9699136743420).

Almost surely, 2^{100120121222200} is an apocalyptic number.

100120121222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120121222200 is an abundant number, since it is smaller than the sum of its proper divisors (132659160619880).

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

100120121222200 is a wasteful number, since it uses less digits than its factorization.

100120121222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500600606127 (or 500600606118 counting only the distinct ones).

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

Adding to 100120121222200 its reverse (2222121021001), we get a palindrome (102342242243201).

The spelling of 100120121222200 in words is "one hundred trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred".