121220023330 has 64 divisors (see below), whose sum is σ = 255246824448. Its totient is φ = 40581777600.

The previous prime is 121220023307. The next prime is 121220023349. The reversal of 121220023330 is 33320022121.

It is a super-2 number, since 2×121220023330² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220023298 and 121220023307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17608069 + ... + 17614951.

It is an arithmetic number, because the mean of its divisors is an integer number (3988231632).

Almost surely, 2^121220023330 is an apocalyptic number.

121220023330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220023330 is an abundant number, since it is smaller than the sum of its proper divisors (134026801118).

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

121220023330 is a wasteful number, since it uses less digits than its factorization.

121220023330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12791.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 121220023330 its reverse (33320022121), we get a palindrome (154540045451).

The spelling of 121220023330 in words is "one hundred twenty-one billion, two hundred twenty million, twenty-three thousand, three hundred thirty".