222220202121100 has 72 divisors (see below), whose sum is σ = 488331015925760. Its totient is φ = 87761270076480.

The previous prime is 222220202121097. The next prime is 222220202121139. The reversal of 222220202121100 is 1121202022222.

222220202121100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 475528159 + ... + 475995241.

Almost surely, 2^{222220202121100} is an apocalyptic number.

222220202121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222220202121100 is an abundant number, since it is smaller than the sum of its proper divisors (266110813804660).

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

222220202121100 is a wasteful number, since it uses less digits than its factorization.

222220202121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527399 (or 527392 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222220202121100 its reverse (1121202022222), we get a palindrome (223341404143322).

The spelling of 222220202121100 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred two million, one hundred twenty-one thousand, one hundred".