21682202442 has 32 divisors (see below), whose sum is σ = 45672740352. Its totient is φ = 6848552304.

The previous prime is 21682202389. The next prime is 21682202447. The reversal of 21682202442 is 24420228612.

It is not an unprimeable number, because it can be changed into a prime (21682202447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719428 + ... + 748959.

It is an arithmetic number, because the mean of its divisors is an integer number (1427273136).

Almost surely, 2^21682202442 is an apocalyptic number.

21682202442 is an abundant number, since it is smaller than the sum of its proper divisors (23990537910).

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

21682202442 is a wasteful number, since it uses less digits than its factorization.

21682202442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468522.

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 21682202442 in words is "twenty-one billion, six hundred eighty-two million, two hundred two thousand, four hundred forty-two".