121211230330 has 16 divisors (see below), whose sum is σ = 218212807680. Its totient is φ = 48477249232.

The previous prime is 121211230279. The next prime is 121211230337. The reversal of 121211230330 is 33032112121.

It is a super-2 number, since 2×121211230330² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121211230298 and 121211230307.

It is not an unprimeable number, because it can be changed into a prime (121211230337) 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, 834814 + ... + 969193.

It is an arithmetic number, because the mean of its divisors is an integer number (13638300480).

Almost surely, 2^121211230330 is an apocalyptic number.

121211230330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121211230330 is a deficient number, since it is larger than the sum of its proper divisors (97001577350).

121211230330 is a wasteful number, since it uses less digits than its factorization.

121211230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810733.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121211230330 its reverse (33032112121), we get a palindrome (154243342451).

It can be divided in two parts, 121211 and 230330, that added together give a triangular number (351541 = T₈₃₈).

The spelling of 121211230330 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred thirty thousand, three hundred thirty".