220401011 has 2 divisors, whose sum is σ = 220401012. Its totient is φ = 220401010.

The previous prime is 220400981. The next prime is 220401017. The reversal of 220401011 is 110104022.

220401011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220401011 - 2¹⁴ = 220384627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220400983 and 220401001.

It is not a weakly prime, because it can be changed into another prime (220401017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110200505 + 110200506.

It is an arithmetic number, because the mean of its divisors is an integer number (110200506).

Almost surely, 2^220401011 is an apocalyptic number.

220401011 is a deficient number, since it is larger than the sum of its proper divisors (1).

220401011 is an equidigital number, since it uses as much as digits as its factorization.

220401011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 220401011 is about 14845.9088977401. The cubic root of 220401011 is about 604.0476430921.

Adding to 220401011 its reverse (110104022), we get a palindrome (330505033).

The spelling of 220401011 in words is "two hundred twenty million, four hundred one thousand, eleven".