220021030311 has 8 divisors (see below), whose sum is σ = 293439974640. Its totient is φ = 146641386432.

The previous prime is 220021030303. The next prime is 220021030331. The reversal of 220021030311 is 113030120022.

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

It is not a de Polignac number, because 220021030311 - 2³ = 220021030303 is a prime.

It is a super-2 number, since 2×220021030311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021030301) 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, 9812046 + ... + 9834443.

It is an arithmetic number, because the mean of its divisors is an integer number (36679996830).

Almost surely, 2^220021030311 is an apocalyptic number.

220021030311 is a deficient number, since it is larger than the sum of its proper divisors (73418944329).

220021030311 is a wasteful number, since it uses less digits than its factorization.

220021030311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650225.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 220021030311 its reverse (113030120022), we get a palindrome (333051150333).

The spelling of 220021030311 in words is "two hundred twenty billion, twenty-one million, thirty thousand, three hundred eleven".