1201423122200 has 48 divisors (see below), whose sum is σ = 3192352871280. Its totient is φ = 411916498560.

The previous prime is 1201423122199. The next prime is 1201423122223. The reversal of 1201423122200 is 22213241021.

It is a super-2 number, since 2×1201423122200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429078287 + ... + 429081086.

It is an arithmetic number, because the mean of its divisors is an integer number (66507351485).

Almost surely, 2^{1201423122200} is an apocalyptic number.

1201423122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201423122200 is an abundant number, since it is smaller than the sum of its proper divisors (1990929749080).

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

1201423122200 is a wasteful number, since it uses less digits than its factorization.

1201423122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858159396 (or 858159387 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1201423122200 its reverse (22213241021), we get a palindrome (1223636363221).

The spelling of 1201423122200 in words is "one trillion, two hundred one billion, four hundred twenty-three million, one hundred twenty-two thousand, two hundred".