21221123303010 has 32 divisors (see below), whose sum is σ = 50937165527040. Its totient is φ = 5658247369728.

The previous prime is 21221123302969. The next prime is 21221123303047. The reversal of 21221123303010 is 1030332112212.

21221123303010 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 44687650 + ... + 45160029.

It is an arithmetic number, because the mean of its divisors is an integer number (1591786422720).

Almost surely, 2^{21221123303010} is an apocalyptic number.

21221123303010 is an abundant number, since it is smaller than the sum of its proper divisors (29716042224030).

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

21221123303010 is a wasteful number, since it uses less digits than its factorization.

21221123303010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89855562.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21221123303010 its reverse (1030332112212), we get a palindrome (22251455415222).

The spelling of 21221123303010 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred twenty-three million, three hundred three thousand, ten".