100212222122212 has 6 divisors (see below), whose sum is σ = 175371388713878. Its totient is φ = 50106111061104.

The previous prime is 100212222122203. The next prime is 100212222122249. The reversal of 100212222122212 is 212221222212001.

It can be written as a sum of positive squares in only one way, i.e., 86293398251776 + 13918823870436 = 9289424^2 + 3730794^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12526527765273 + ... + 12526527765280.

Almost surely, 2^{100212222122212} is an apocalyptic number.

It is an amenable number.

100212222122212 is a deficient number, since it is larger than the sum of its proper divisors (75159166591666).

100212222122212 is a wasteful number, since it uses less digits than its factorization.

100212222122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25053055530557 (or 25053055530555 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 100212222122212 its reverse (212221222212001), we get a palindrome (312433444334213).

The spelling of 100212222122212 in words is "one hundred trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".