100012222201212 has 18 divisors (see below), whose sum is σ = 252808672786488. Its totient is φ = 33337407400392.

The previous prime is 100012222201211. The next prime is 100012222201261. The reversal of 100012222201212 is 212102222210001.

It is a happy number.

100012222201212 is a `hidden beast` number, since 10 + 0 + 0 + 1 + 222 + 220 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×100012222201212² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012222201211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389058641648 + ... + 1389058641719.

It is an arithmetic number, because the mean of its divisors is an integer number (14044926265916).

Almost surely, 2^{100012222201212} is an apocalyptic number.

100012222201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100012222201212 is an abundant number, since it is smaller than the sum of its proper divisors (152796450585276).

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

100012222201212 is a wasteful number, since it uses less digits than its factorization.

100012222201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778117283377 (or 2778117283372 counting only the distinct ones).

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

Adding to 100012222201212 its reverse (212102222210001), we get a palindrome (312114444411213).

The spelling of 100012222201212 in words is "one hundred trillion, twelve billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".