120121002201220 has 24 divisors (see below), whose sum is σ = 260952522024600. Its totient is φ = 46391559470592.

The previous prime is 120121002201199. The next prime is 120121002201227. The reversal of 120121002201220 is 22102200121021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3216250944 + 120117785950276 = 56712^2 + 10959826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120121002201194 and 120121002201203.

It is not an unprimeable number, because it can be changed into a prime (120121002201227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103552587525 + ... + 103552588684.

It is an arithmetic number, because the mean of its divisors is an integer number (10873021751025).

Almost surely, 2^{120121002201220} is an apocalyptic number.

120121002201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121002201220 is an abundant number, since it is smaller than the sum of its proper divisors (140831519823380).

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

120121002201220 is a wasteful number, since it uses less digits than its factorization.

120121002201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207105176247 (or 207105176245 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120121002201220 its reverse (22102200121021), we get a palindrome (142223202322241).

The spelling of 120121002201220 in words is "one hundred twenty trillion, one hundred twenty-one billion, two million, two hundred one thousand, two hundred twenty".