222012242002100 has 72 divisors (see below), whose sum is σ = 525587738335968. Its totient is φ = 80728005052800.

The previous prime is 222012242002099. The next prime is 222012242002121. The reversal of 222012242002100 is 1200242210222.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 19294439 + ... + 28570961.

Almost surely, 2^{222012242002100} is an apocalyptic number.

222012242002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012242002100 is an abundant number, since it is smaller than the sum of its proper divisors (303575496333868).

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

222012242002100 is a wasteful number, since it uses less digits than its factorization.

222012242002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298305 (or 9298298 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222012242002100 its reverse (1200242210222), we get a palindrome (223212484212322).

The spelling of 222012242002100 in words is "two hundred twenty-two trillion, twelve billion, two hundred forty-two million, two thousand, one hundred".