122220121102200 has 144 divisors (see below), whose sum is σ = 447770080110600. Its totient is φ = 29629120262400.

The previous prime is 122220121102181. The next prime is 122220121102243. The reversal of 122220121102200 is 2201121022221.

It is a happy number.

122220121102200 is a `hidden beast` number, since 1 + 22 + 220 + 121 + 102 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3086346895 + ... + 3086386494.

Almost surely, 2^{122220121102200} is an apocalyptic number.

122220121102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220121102200 is an abundant number, since it is smaller than the sum of its proper divisors (325549959008400).

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

122220121102200 is a wasteful number, since it uses less digits than its factorization.

122220121102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172733422 (or 6172733410 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122220121102200 its reverse (2201121022221), we get a palindrome (124421242124421).

The spelling of 122220121102200 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred".