21142230332302 has 32 divisors (see below), whose sum is σ = 33603649672320. Its totient is φ = 9948446399520.

The previous prime is 21142230332297. The next prime is 21142230332339. The reversal of 21142230332302 is 20323303224112.

It is a super-2 number, since 2×21142230332302² (a number of 27 digits) contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 11884977 + ... + 13547587.

It is an arithmetic number, because the mean of its divisors is an integer number (1050114052260).

Almost surely, 2^{21142230332302} is an apocalyptic number.

21142230332302 is a deficient number, since it is larger than the sum of its proper divisors (12461419340018).

21142230332302 is a wasteful number, since it uses less digits than its factorization.

21142230332302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664848.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21142230332302 its reverse (20323303224112), we get a palindrome (41465533556414).

The spelling of 21142230332302 in words is "twenty-one trillion, one hundred forty-two billion, two hundred thirty million, three hundred thirty-two thousand, three hundred two".