2121011212330 has 32 divisors (see below), whose sum is σ = 4047670065600. Its totient is φ = 797969221632.

The previous prime is 2121011212297. The next prime is 2121011212391. The reversal of 2121011212330 is 332121101212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 2121011212298 and 2121011212307.

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, 40129047 + ... + 40181866.

It is an arithmetic number, because the mean of its divisors is an integer number (126489689550).

Almost surely, 2^{2121011212330} is an apocalyptic number.

2121011212330 is a deficient number, since it is larger than the sum of its proper divisors (1926658853270).

2121011212330 is a wasteful number, since it uses less digits than its factorization.

2121011212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80311078.

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

Adding to 2121011212330 its reverse (332121101212), we get a palindrome (2453132313542).

The spelling of 2121011212330 in words is "two trillion, one hundred twenty-one billion, eleven million, two hundred twelve thousand, three hundred thirty".