21142202002 has 8 divisors (see below), whose sum is σ = 33092142336. Its totient is φ = 10111487892.

The previous prime is 21142201973. The next prime is 21142202051. The reversal of 21142202002 is 20020224112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229806498 + ... + 229806589.

It is an arithmetic number, because the mean of its divisors is an integer number (4136517792).

Almost surely, 2^21142202002 is an apocalyptic number.

21142202002 is a deficient number, since it is larger than the sum of its proper divisors (11949940334).

21142202002 is a wasteful number, since it uses less digits than its factorization.

21142202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459613112.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21142202002 its reverse (20020224112), we get a palindrome (41162426114).

The spelling of 21142202002 in words is "twenty-one billion, one hundred forty-two million, two hundred two thousand, two".