2120521646330 has 32 divisors (see below), whose sum is σ = 3847175913600. Its totient is φ = 841513907520.

The previous prime is 2120521646323. The next prime is 2120521646351. The reversal of 2120521646330 is 336461250212.

It is a super-2 number, since 2×2120521646330² (a number of 25 digits) contains 22 as substring.

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, 844901 + ... + 2225960.

It is an arithmetic number, because the mean of its divisors is an integer number (120224247300).

Almost surely, 2^{2120521646330} is an apocalyptic number.

2120521646330 is a deficient number, since it is larger than the sum of its proper divisors (1726654267270).

2120521646330 is a wasteful number, since it uses less digits than its factorization.

2120521646330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071414.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 2120521646330 its reverse (336461250212), we get a palindrome (2456982896542).

The spelling of 2120521646330 in words is "two trillion, one hundred twenty billion, five hundred twenty-one million, six hundred forty-six thousand, three hundred thirty".