21333512243010 has 32 divisors (see below), whose sum is σ = 55855013873472. Its totient is φ = 5171760543680.

The previous prime is 21333512242993. The next prime is 21333512243053. The reversal of 21333512243010 is 1034221533312.

It is a super-2 number, since 2×21333512243010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32323503069 + ... + 32323503728.

It is an arithmetic number, because the mean of its divisors is an integer number (1745469183546).

Almost surely, 2^{21333512243010} is an apocalyptic number.

21333512243010 is an abundant number, since it is smaller than the sum of its proper divisors (34521501630462).

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

21333512243010 is a wasteful number, since it uses less digits than its factorization.

21333512243010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64647006818.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 21333512243010 its reverse (1034221533312), we get a palindrome (22367733776322).

It can be divided in two parts, 2133351 and 2243010, that added together give a triangular number (4376361 = T₂₉₅₈).

The spelling of 21333512243010 in words is "twenty-one trillion, three hundred thirty-three billion, five hundred twelve million, two hundred forty-three thousand, ten".