220021325012 has 12 divisors (see below), whose sum is σ = 387621462900. Its totient is φ = 109272335616.

The previous prime is 220021324981. The next prime is 220021325023. The reversal of 220021325012 is 210523120022.

220021325012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19069952836 + 200951372176 = 138094^2 + 448276^2 .

It is a super-2 number, since 2×220021325012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184581053 + ... + 184582244.

It is an arithmetic number, because the mean of its divisors is an integer number (32301788575).

Almost surely, 2^220021325012 is an apocalyptic number.

It is an amenable number.

220021325012 is a deficient number, since it is larger than the sum of its proper divisors (167600137888).

220021325012 is a wasteful number, since it uses less digits than its factorization.

220021325012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369163450 (or 369163448 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 220021325012 its reverse (210523120022), we get a palindrome (430544445034).

The spelling of 220021325012 in words is "two hundred twenty billion, twenty-one million, three hundred twenty-five thousand, twelve".