120021110022 has 96 divisors (see below), whose sum is σ = 267587867520. Its totient is φ = 35587552000.

The previous prime is 120021109993. The next prime is 120021110023. The reversal of 120021110022 is 220011120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59919673 + ... + 59921675.

It is an arithmetic number, because the mean of its divisors is an integer number (2787373620).

Almost surely, 2^120021110022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120021110022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133793933760).

120021110022 is an abundant number, since it is smaller than the sum of its proper divisors (147566757498).

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

120021110022 is a wasteful number, since it uses less digits than its factorization.

120021110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120021110022 its reverse (220011120021), we get a palindrome (340032230043).

Subtracting 120021110022 from its reverse (220011120021), we obtain a palindrome (99990009999).

The spelling of 120021110022 in words is "one hundred twenty billion, twenty-one million, one hundred ten thousand, twenty-two".