2121020121302 has 4 divisors (see below), whose sum is σ = 3181530181956. Its totient is φ = 1060510060650.

The previous prime is 2121020121287. The next prime is 2121020121323. The reversal of 2121020121302 is 2031210201212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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, 530255030324 + ... + 530255030327.

It is an arithmetic number, because the mean of its divisors is an integer number (795382545489).

Almost surely, 2^{2121020121302} is an apocalyptic number.

2121020121302 is a deficient number, since it is larger than the sum of its proper divisors (1060510060654).

2121020121302 is a wasteful number, since it uses less digits than its factorization.

2121020121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060510060653.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121020121302 its reverse (2031210201212), we get a palindrome (4152230322514).

The spelling of 2121020121302 in words is "two trillion, one hundred twenty-one billion, twenty million, one hundred twenty-one thousand, three hundred two".