220111001201 has 24 divisors (see below), whose sum is σ = 291963669480. Its totient is φ = 163909412352.

The previous prime is 220111001197. The next prime is 220111001207. The reversal of 220111001201 is 102100111022.

It can be written as a sum of positive squares in 4 ways, for example, as 55956375601 + 164154625600 = 236551^2 + 405160^2 .

It is not a de Polignac number, because 220111001201 - 2² = 220111001197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220111001207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10152206 + ... + 10173863.

It is an arithmetic number, because the mean of its divisors is an integer number (12165152895).

Almost surely, 2^220111001201 is an apocalyptic number.

It is an amenable number.

220111001201 is a deficient number, since it is larger than the sum of its proper divisors (71852668279).

220111001201 is a wasteful number, since it uses less digits than its factorization.

220111001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20326113 (or 20326106 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220111001201 its reverse (102100111022), we get a palindrome (322211112223).

The spelling of 220111001201 in words is "two hundred twenty billion, one hundred eleven million, one thousand, two hundred one".