121121122330 has 32 divisors (see below), whose sum is σ = 235195695504. Its totient is φ = 44644110336.

The previous prime is 121121122289. The next prime is 121121122363. The reversal of 121121122330 is 33221121121.

It can be written as a sum of positive squares in 8 ways, for example, as 44133186241 + 76987936089 = 210079^2 + 277467^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121121122298 and 121121122307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732357 + ... + 882376.

Almost surely, 2^121121122330 is an apocalyptic number.

121121122330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121122330 is a deficient number, since it is larger than the sum of its proper divisors (114074573174).

121121122330 is a wasteful number, since it uses less digits than its factorization.

121121122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615330.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121121122330 its reverse (33221121121), we get a palindrome (154342243451).

The spelling of 121121122330 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, three hundred thirty".