2120221601612 has 6 divisors (see below), whose sum is σ = 3710387802828. Its totient is φ = 1060110800804.

The previous prime is 2120221601581. The next prime is 2120221601651. The reversal of 2120221601612 is 2161061220212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265027700198 + ... + 265027700205.

It is an arithmetic number, because the mean of its divisors is an integer number (618397967138).

Almost surely, 2^{2120221601612} is an apocalyptic number.

It is an amenable number.

2120221601612 is a deficient number, since it is larger than the sum of its proper divisors (1590166201216).

2120221601612 is a wasteful number, since it uses less digits than its factorization.

2120221601612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530055400407 (or 530055400405 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 2120221601612 its reverse (2161061220212), we get a palindrome (4281282821824).

The spelling of 2120221601612 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, six hundred one thousand, six hundred twelve".