100010222221212 has 288 divisors, whose sum is σ = 264305437119360. Its totient is φ = 31867395840000.

The previous prime is 100010222221193. The next prime is 100010222221223. The reversal of 100010222221212 is 212122222010001.

It is a happy number.

100010222221212 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 10 + 222 + 221 + 212 = 666.

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 95 ways as a sum of consecutive naturals, for example, 3606167298 + ... + 3606195030.

It is an arithmetic number, because the mean of its divisors is an integer number (917727212220).

Almost surely, 2^{100010222221212} is an apocalyptic number.

100010222221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100010222221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132152718559680).

100010222221212 is an abundant number, since it is smaller than the sum of its proper divisors (164295214898148).

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

100010222221212 is a wasteful number, since it uses less digits than its factorization.

100010222221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28205 (or 28200 counting only the distinct ones).

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

Adding to 100010222221212 its reverse (212122222010001), we get a palindrome (312132444231213).

The spelling of 100010222221212 in words is "one hundred trillion, ten billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".