2121402350 has 12 divisors (see below), whose sum is σ = 3945808464. Its totient is φ = 848560920.

The previous prime is 2121402343. The next prime is 2121402359. The reversal of 2121402350 is 532041212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121402359) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 21213974 + ... + 21214073.

It is an arithmetic number, because the mean of its divisors is an integer number (328817372).

Almost surely, 2^2121402350 is an apocalyptic number.

2121402350 is a deficient number, since it is larger than the sum of its proper divisors (1824406114).

2121402350 is a wasteful number, since it uses less digits than its factorization.

2121402350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42428059 (or 42428054 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2121402350 is about 46058.6837632167. The cubic root of 2121402350 is about 1284.9148504999.

Adding to 2121402350 its reverse (532041212), we get a palindrome (2653443562).

The spelling of 2121402350 in words is "two billion, one hundred twenty-one million, four hundred two thousand, three hundred fifty".