100121111222022 has 72 divisors (see below), whose sum is σ = 239065269311232. Its totient is φ = 30260514414240.

The previous prime is 100121111222009. The next prime is 100121111222113. The reversal of 100121111222022 is 220222111121001.

100121111222022 is a `hidden beast` number, since 100 + 1 + 211 + 112 + 220 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 100121111221986 and 100121111222004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59177953 + ... + 60846300.

It is an arithmetic number, because the mean of its divisors is an integer number (3320350962656).

Almost surely, 2^{100121111222022} is an apocalyptic number.

100121111222022 is an abundant number, since it is smaller than the sum of its proper divisors (138944158089210).

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

100121111222022 is a wasteful number, since it uses less digits than its factorization.

100121111222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120024666 (or 120024652 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 100121111222022 its reverse (220222111121001), we get a palindrome (320343222343023).

The spelling of 100121111222022 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, twenty-two".