11222421601 has 2 divisors, whose sum is σ = 11222421602. Its totient is φ = 11222421600.

The previous prime is 11222421589. The next prime is 11222421629. The reversal of 11222421601 is 10612422211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11207398225 + 15023376 = 105865^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222421601 - 2¹¹ = 11222419553 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222421101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611210800 + 5611210801.

It is an arithmetic number, because the mean of its divisors is an integer number (5611210801).

Almost surely, 2^11222421601 is an apocalyptic number.

It is an amenable number.

11222421601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222421601 is an equidigital number, since it uses as much as digits as its factorization.

11222421601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11222421601 its reverse (10612422211), we get a palindrome (21834843812).

The spelling of 11222421601 in words is "eleven billion, two hundred twenty-two million, four hundred twenty-one thousand, six hundred one".