100222211020212 has 72 divisors (see below), whose sum is σ = 255928249041192. Its totient is φ = 33066235296000.

The previous prime is 100222211020201. The next prime is 100222211020241. The reversal of 100222211020212 is 212020112222001.

It is a happy number.

100222211020212 is a `hidden beast` number, since 1 + 0 + 0 + 222 + 211 + 0 + 20 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29790571789476 + 70431639230736 = 5458074^2 + 8392356^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 7233538 + ... + 15898694.

It is an arithmetic number, because the mean of its divisors is an integer number (3554559014461).

Almost surely, 2^{100222211020212} is an apocalyptic number.

100222211020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100222211020212 is an abundant number, since it is smaller than the sum of its proper divisors (155706038020980).

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

100222211020212 is a wasteful number, since it uses less digits than its factorization.

100222211020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668449 (or 8668444 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100222211020212 its reverse (212020112222001), we get a palindrome (312242323242213).

The spelling of 100222211020212 in words is "one hundred trillion, two hundred twenty-two billion, two hundred eleven million, twenty thousand, two hundred twelve".