20121121033310 has 32 divisors (see below), whose sum is σ = 39514709001600. Its totient is φ = 7316003865760.

The previous prime is 20121121033271. The next prime is 20121121033333. The reversal of 20121121033310 is 1333012112102.

It is a happy number.

It is a super-2 number, since 2×20121121033310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8538680 + ... + 10637259.

It is an arithmetic number, because the mean of its divisors is an integer number (1234834656300).

Almost surely, 2^{20121121033310} is an apocalyptic number.

20121121033310 is a deficient number, since it is larger than the sum of its proper divisors (19393587968290).

20121121033310 is a wasteful number, since it uses less digits than its factorization.

20121121033310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19185496.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20121121033310 its reverse (1333012112102), we get a palindrome (21454133145412).

The spelling of 20121121033310 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, thirty-three thousand, three hundred ten".