21224550233010 has 32 divisors (see below), whose sum is σ = 53153656237440. Its totient is φ = 5413798320128.

The previous prime is 21224550232997. The next prime is 21224550233053. The reversal of 21224550233010 is 1033205542212.

It is a super-4 number, since 4×21224550233010⁴ (a number of 54 digits) contains 4444 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, 15380108175 + ... + 15380109554.

It is an arithmetic number, because the mean of its divisors is an integer number (1661051757420).

Almost surely, 2^{21224550233010} is an apocalyptic number.

21224550233010 is an abundant number, since it is smaller than the sum of its proper divisors (31929106004430).

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

21224550233010 is a wasteful number, since it uses less digits than its factorization.

21224550233010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30760217762.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 21224550233010 its reverse (1033205542212), we get a palindrome (22257755775222).

The spelling of 21224550233010 in words is "twenty-one trillion, two hundred twenty-four billion, five hundred fifty million, two hundred thirty-three thousand, ten".