220401213011 has 6 divisors (see below), whose sum is σ = 256385084580. Its totient is φ = 188915325396.

The previous prime is 220401212987. The next prime is 220401213031. The reversal of 220401213011 is 110312104022.

It is a de Polignac number, because none of the positive numbers 2^k-220401213011 is a prime.

It is a super-2 number, since 2×220401213011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220401213031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2248991921 + ... + 2248992018.

It is an arithmetic number, because the mean of its divisors is an integer number (42730847430).

Almost surely, 2^220401213011 is an apocalyptic number.

220401213011 is a deficient number, since it is larger than the sum of its proper divisors (35983871569).

220401213011 is an equidigital number, since it uses as much as digits as its factorization.

220401213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497983953 (or 4497983946 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 220401213011 its reverse (110312104022), we get a palindrome (330713317033).

The spelling of 220401213011 in words is "two hundred twenty billion, four hundred one million, two hundred thirteen thousand, eleven".