121220311223230 has 64 divisors (see below), whose sum is σ = 233028321672960. Its totient is φ = 45271020386304.

The previous prime is 121220311223171. The next prime is 121220311223261. The reversal of 121220311223230 is 32322113022121.

It is a super-3 number, since 3×121220311223230³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220311223195 and 121220311223204.

It is a congruent number.

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, 11523544 + ... + 19370923.

It is an arithmetic number, because the mean of its divisors is an integer number (3641067526140).

Almost surely, 2^{121220311223230} is an apocalyptic number.

121220311223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220311223230 is a deficient number, since it is larger than the sum of its proper divisors (111808010449730).

121220311223230 is a wasteful number, since it uses less digits than its factorization.

121220311223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30894793.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121220311223230 its reverse (32322113022121), we get a palindrome (153542424245351).

The spelling of 121220311223230 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred eleven million, two hundred twenty-three thousand, two hundred thirty".