21422203012 has 24 divisors (see below), whose sum is σ = 42850896704. Its totient is φ = 9179553312.

The previous prime is 21422203009. The next prime is 21422203039. The reversal of 21422203012 is 21030222412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142318 + ... + 251194.

Almost surely, 2^21422203012 is an apocalyptic number.

It is an amenable number.

21422203012 is an abundant number, since it is smaller than the sum of its proper divisors (21428693692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21422203012 is a wasteful number, since it uses less digits than its factorization.

21422203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115915 (or 115913 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21422203012 its reverse (21030222412), we get a palindrome (42452425424).

The spelling of 21422203012 in words is "twenty-one billion, four hundred twenty-two million, two hundred three thousand, twelve".