32113312223220 has 72 divisors (see below), whose sum is σ = 97424187633864. Its totient is φ = 8562336104448.

The previous prime is 32113312223177. The next prime is 32113312223231. The reversal of 32113312223220 is 2232221331123.

32113312223220 is a `hidden beast` number, since 3 + 2 + 1 + 1 + 3 + 312 + 22 + 322 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8664745636836 + 23448566586384 = 2943594^2 + 4842372^2 .

It is a super-2 number, since 2×32113312223220² (a number of 28 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 23 ways as a sum of consecutive naturals, for example, 11370189 + ... + 13910708.

It is an arithmetic number, because the mean of its divisors is an integer number (1353113717137).

Almost surely, 2^{32113312223220} is an apocalyptic number.

32113312223220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32113312223220 is an abundant number, since it is smaller than the sum of its proper divisors (65310875410644).

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

32113312223220 is a wasteful number, since it uses less digits than its factorization.

32113312223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25287969 (or 25287964 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 32113312223220 its reverse (2232221331123), we get a palindrome (34345533554343).

The spelling of 32113312223220 in words is "thirty-two trillion, one hundred thirteen billion, three hundred twelve million, two hundred twenty-three thousand, two hundred twenty".