22222222002100 has 36 divisors (see below), whose sum is σ = 48529369688044. Its totient is φ = 8832271668480.

The previous prime is 22222222002017. The next prime is 22222222002119. The reversal of 22222222002100 is 120022222222.

It can be written as a sum of positive squares in 6 ways, for example, as 5843996814096 + 16378225188004 = 2417436^2 + 4047002^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707698377 + ... + 707729776.

Almost surely, 2^{22222222002100} is an apocalyptic number.

22222222002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222222002100 is an abundant number, since it is smaller than the sum of its proper divisors (26307147685944).

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

22222222002100 is a wasteful number, since it uses less digits than its factorization.

22222222002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415428324 (or 1415428317 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22222222002100 its reverse (120022222222), we get a palindrome (22342244224322).

The spelling of 22222222002100 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, two thousand, one hundred".