12221401011 has 8 divisors (see below), whose sum is σ = 16297558224. Its totient is φ = 8146422240.

The previous prime is 12221401001. The next prime is 12221401013. The reversal of 12221401011 is 11010412221.

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

It is not a de Polignac number, because 12221401011 - 2²² = 12217206707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221401013) 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, 270120 + ... + 312101.

It is an arithmetic number, because the mean of its divisors is an integer number (2037194778).

Almost surely, 2^12221401011 is an apocalyptic number.

12221401011 is a deficient number, since it is larger than the sum of its proper divisors (4076157213).

12221401011 is an equidigital number, since it uses as much as digits as its factorization.

12221401011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589221.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221401011 its reverse (11010412221), we get a palindrome (23231813232).

The spelling of 12221401011 in words is "twelve billion, two hundred twenty-one million, four hundred one thousand, eleven".