100120221221022 has 48 divisors (see below), whose sum is σ = 219716309292480. Its totient is φ = 32944471372800.

The previous prime is 100120221221017. The next prime is 100120221221023. The reversal of 100120221221022 is 220122122021001.

It is a happy number.

100120221221022 is a `hidden beast` number, since 100 + 120 + 2 + 212 + 210 + 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 = 100120221220986 and 100120221221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120221221023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296622 + ... + 14153742.

It is an arithmetic number, because the mean of its divisors is an integer number (4577423110260).

Almost surely, 2^{100120221221022} is an apocalyptic number.

100120221221022 is an abundant number, since it is smaller than the sum of its proper divisors (119596088071458).

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

100120221221022 is a wasteful number, since it uses less digits than its factorization.

100120221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13862289 (or 13862286 counting only the distinct ones).

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

Adding to 100120221221022 its reverse (220122122021001), we get a palindrome (320242343242023).

The spelling of 100120221221022 in words is "one hundred trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".