100212222111212 has 24 divisors (see below), whose sum is σ = 179450284346256. Its totient is φ = 48940718678208.

The previous prime is 100212222111181. The next prime is 100212222111227. The reversal of 100212222111212 is 212111222212001.

It is a super-2 number, since 2×100212222111212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96915638 + ... + 97944194.

It is an arithmetic number, because the mean of its divisors is an integer number (7477095181094).

Almost surely, 2^{100212222111212} is an apocalyptic number.

It is an amenable number.

100212222111212 is a deficient number, since it is larger than the sum of its proper divisors (79238062235044).

100212222111212 is a wasteful number, since it uses less digits than its factorization.

100212222111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595057 (or 1595055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 100212222111212 its reverse (212111222212001), we get a palindrome (312323444323213).

The spelling of 100212222111212 in words is "one hundred trillion, two hundred twelve billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".