2121133223330 has 16 divisors (see below), whose sum is σ = 4165134329664. Its totient is φ = 771321172080.

The previous prime is 2121133223303. The next prime is 2121133223353. The reversal of 2121133223330 is 333223311212.

It is a super-2 number, since 2×2121133223330² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121133223330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9641514542 + ... + 9641514761.

It is an arithmetic number, because the mean of its divisors is an integer number (260320895604).

Almost surely, 2^{2121133223330} is an apocalyptic number.

2121133223330 is a deficient number, since it is larger than the sum of its proper divisors (2044001106334).

2121133223330 is a wasteful number, since it uses less digits than its factorization.

2121133223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19283029321.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 2121133223330 its reverse (333223311212), we get a palindrome (2454356534542).

The spelling of 2121133223330 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-three million, two hundred twenty-three thousand, three hundred thirty".