21224510213001 has 16 divisors (see below), whose sum is σ = 28306173639744. Its totient is φ = 14146260459264.

The previous prime is 21224510212999. The next prime is 21224510213003. The reversal of 21224510213001 is 10031201542212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21224510212999) and next prime (21224510213003).

It is not a de Polignac number, because 21224510213001 - 2¹ = 21224510212999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21224510213003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409579245 + ... + 409631061.

It is an arithmetic number, because the mean of its divisors is an integer number (1769135852484).

Almost surely, 2^{21224510213001} is an apocalyptic number.

It is an amenable number.

21224510213001 is a deficient number, since it is larger than the sum of its proper divisors (7081663426743).

21224510213001 is a wasteful number, since it uses less digits than its factorization.

21224510213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82120.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 21224510213001 its reverse (10031201542212), we get a palindrome (31255711755213).

The spelling of 21224510213001 in words is "twenty-one trillion, two hundred twenty-four billion, five hundred ten million, two hundred thirteen thousand, one".