21415200010 has 16 divisors (see below), whose sum is σ = 40576168800. Its totient is φ = 8115233616.

The previous prime is 21415200007. The next prime is 21415200013. The reversal of 21415200010 is 1000251412.

It is an interprime number because it is at equal distance from previous prime (21415200007) and next prime (21415200013).

It is a super-2 number, since 2×21415200010² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21415200013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56355600 + ... + 56355979.

It is an arithmetic number, because the mean of its divisors is an integer number (2536010550).

Almost surely, 2^21415200010 is an apocalyptic number.

21415200010 is a deficient number, since it is larger than the sum of its proper divisors (19160968790).

21415200010 is a wasteful number, since it uses less digits than its factorization.

21415200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112711605.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 21415200010 its reverse (1000251412), we get a palindrome (22415451422).

The spelling of 21415200010 in words is "twenty-one billion, four hundred fifteen million, two hundred thousand, ten".