100021221122222 has 32 divisors (see below), whose sum is σ = 152176317939360. Its totient is φ = 49300113587200.

The previous prime is 100021221122201. The next prime is 100021221122237. The reversal of 100021221122222 is 222221122120001.

100021221122222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×100021221122222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100021221122194 and 100021221122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991112438 + ... + 991213350.

It is an arithmetic number, because the mean of its divisors is an integer number (4755509935605).

Almost surely, 2^{100021221122222} is an apocalyptic number.

100021221122222 is a deficient number, since it is larger than the sum of its proper divisors (52155096817138).

100021221122222 is a wasteful number, since it uses less digits than its factorization.

100021221122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122308.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 100021221122222 its reverse (222221122120001), we get a palindrome (322242343242223).

The spelling of 100021221122222 in words is "one hundred trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".