20121120222010 has 16 divisors (see below), whose sum is σ = 36478577671200. Its totient is φ = 7990545584016.

The previous prime is 20121120221989. The next prime is 20121120222011. The reversal of 20121120222010 is 1022202112102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20121120222011) 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, 7237811640 + ... + 7237814419.

It is an arithmetic number, because the mean of its divisors is an integer number (2279911104450).

Almost surely, 2^{20121120222010} is an apocalyptic number.

20121120222010 is a deficient number, since it is larger than the sum of its proper divisors (16357457449190).

20121120222010 is a wasteful number, since it uses less digits than its factorization.

20121120222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14475626205.

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

Adding to 20121120222010 its reverse (1022202112102), we get a palindrome (21143322334112).

The spelling of 20121120222010 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, ten".