222220011010100 has 18 divisors (see below), whose sum is σ = 482217423892134. Its totient is φ = 88888004404000.

The previous prime is 222220011010091. The next prime is 222220011010111. The reversal of 222220011010100 is 1010110022222.

It can be written as a sum of positive squares in 3 ways, for example, as 12249594003364 + 209970417006736 = 3499942^2 + 14490356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111100054951 + ... + 1111100055150.

Almost surely, 2^{222220011010100} is an apocalyptic number.

222220011010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222220011010100 is an abundant number, since it is smaller than the sum of its proper divisors (259997412882034).

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

222220011010100 is a wasteful number, since it uses less digits than its factorization.

222220011010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222200110115 (or 2222200110108 counting only the distinct ones).

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

Adding to 222220011010100 its reverse (1010110022222), we get a palindrome (223230121032322).

The spelling of 222220011010100 in words is "two hundred twenty-two trillion, two hundred twenty billion, eleven million, ten thousand, one hundred".