100021101111222 has 64 divisors (see below), whose sum is σ = 216267194565120. Its totient is φ = 30731184843264.

The previous prime is 100021101111209. The next prime is 100021101111263. The reversal of 100021101111222 is 222111101120001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183772263 + ... + 184315725.

It is an arithmetic number, because the mean of its divisors is an integer number (3379174915080).

Almost surely, 2^{100021101111222} is an apocalyptic number.

100021101111222 is an abundant number, since it is smaller than the sum of its proper divisors (116246093453898).

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

100021101111222 is a wasteful number, since it uses less digits than its factorization.

100021101111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587157.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100021101111222 its reverse (222111101120001), we get a palindrome (322132202231223).

The spelling of 100021101111222 in words is "one hundred trillion, twenty-one billion, one hundred one million, one hundred eleven thousand, two hundred twenty-two".