12001121212290 has 32 divisors (see below), whose sum is σ = 32917361040000. Its totient is φ = 2743113419904.

The previous prime is 12001121212277. The next prime is 12001121212291. The reversal of 12001121212290 is 9221212110021.

It is a super-3 number, since 3×12001121212290³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12001121212290.

It is not an unprimeable number, because it can be changed into a prime (12001121212291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28574097915 + ... + 28574098334.

It is an arithmetic number, because the mean of its divisors is an integer number (1028667532500).

Almost surely, 2^{12001121212290} is an apocalyptic number.

12001121212290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001121212290 is an abundant number, since it is smaller than the sum of its proper divisors (20916239827710).

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

12001121212290 is a wasteful number, since it uses less digits than its factorization.

12001121212290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148196266.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 12001121212290 in words is "twelve trillion, one billion, one hundred twenty-one million, two hundred twelve thousand, two hundred ninety".