220121102200 has 48 divisors (see below), whose sum is σ = 523683479880. Its totient is φ = 86000799360.

The previous prime is 220121102111. The next prime is 220121102203. The reversal of 220121102200 is 2201121022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121102203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12789139 + ... + 12806338.

Almost surely, 2^220121102200 is an apocalyptic number.

220121102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220121102200 is an abundant number, since it is smaller than the sum of its proper divisors (303562377680).

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

220121102200 is a wasteful number, since it uses less digits than its factorization.

220121102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25595536 (or 25595527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220121102200 its reverse (2201121022), we get a palindrome (222322223222).

The spelling of 220121102200 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred".