2021121302 has 16 divisors (see below), whose sum is σ = 3167283600. Its totient is φ = 966050400.

The previous prime is 2021121293. The next prime is 2021121329. The reversal of 2021121302 is 2031211202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166652 + ... + 178367.

It is an arithmetic number, because the mean of its divisors is an integer number (197955225).

Almost surely, 2^2021121302 is an apocalyptic number.

2021121302 is a deficient number, since it is larger than the sum of its proper divisors (1146162298).

2021121302 is a wasteful number, since it uses less digits than its factorization.

2021121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345151.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021121302 is about 44956.8826988705. The cubic root of 2021121302 is about 1264.3407235039.

Adding to 2021121302 its reverse (2031211202), we get a palindrome (4052332504).

The spelling of 2021121302 in words is "two billion, twenty-one million, one hundred twenty-one thousand, three hundred two".