202220121001100 has 72 divisors (see below), whose sum is σ = 442929342166080. Its totient is φ = 80130422776320.

The previous prime is 202220121001091. The next prime is 202220121001133. The reversal of 202220121001100 is 1100121022202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54525032 + ... + 58115568.

Almost surely, 2^{202220121001100} is an apocalyptic number.

202220121001100 is a gapful number since it is divisible by the number (20) 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 202220121001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221464671083040).

202220121001100 is an abundant number, since it is smaller than the sum of its proper divisors (240709221164980).

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

202220121001100 is a wasteful number, since it uses less digits than its factorization.

202220121001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595827 (or 3595820 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202220121001100 its reverse (1100121022202), we get a palindrome (203320242023302).

The spelling of 202220121001100 in words is "two hundred two trillion, two hundred twenty billion, one hundred twenty-one million, one thousand, one hundred".