21122243042002 has 16 divisors (see below), whose sum is σ = 31697217421632. Its totient is φ = 10556504192080.

The previous prime is 21122243041987. The next prime is 21122243042011. The reversal of 21122243042002 is 20024034222112.

It is a super-2 number, since 2×21122243042002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210450243 + ... + 210550585.

It is an arithmetic number, because the mean of its divisors is an integer number (1981076088852).

Almost surely, 2^{21122243042002} is an apocalyptic number.

21122243042002 is a deficient number, since it is larger than the sum of its proper divisors (10574974379630).

21122243042002 is a wasteful number, since it uses less digits than its factorization.

21122243042002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145313.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21122243042002 its reverse (20024034222112), we get a palindrome (41146277264114).

The spelling of 21122243042002 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred forty-three million, forty-two thousand, two".