220120032311221 has 8 divisors (see below), whose sum is σ = 251576272325504. Its totient is φ = 188666422575120.

The previous prime is 220120032311219. The next prime is 220120032311273. The reversal of 220120032311221 is 122113230021022.

220120032311221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220120032311221 - 2¹ = 220120032311219 is a prime.

It is a super-4 number, since 4×220120032311221⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220120032311192 and 220120032311201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120032371221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657390210 + ... + 657724963.

It is an arithmetic number, because the mean of its divisors is an integer number (31447034040688).

Almost surely, 2^{220120032311221} is an apocalyptic number.

It is an amenable number.

220120032311221 is a deficient number, since it is larger than the sum of its proper divisors (31456240014283).

220120032311221 is a wasteful number, since it uses less digits than its factorization.

220120032311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315139091.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 220120032311221 its reverse (122113230021022), we get a palindrome (342233262332243).

The spelling of 220120032311221 in words is "two hundred twenty trillion, one hundred twenty billion, thirty-two million, three hundred eleven thousand, two hundred twenty-one".