12220011011001 has 4 divisors (see below), whose sum is σ = 16293348014672. Its totient is φ = 8146674007332.

The previous prime is 12220011010877. The next prime is 12220011011003. The reversal of 12220011011001 is 10011011002221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12220011011001 - 2¹⁸ = 12220010748857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220011011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036668501831 + ... + 2036668501836.

It is an arithmetic number, because the mean of its divisors is an integer number (4073337003668).

Almost surely, 2^{12220011011001} is an apocalyptic number.

It is an amenable number.

12220011011001 is a deficient number, since it is larger than the sum of its proper divisors (4073337003671).

12220011011001 is an equidigital number, since it uses as much as digits as its factorization.

12220011011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073337003670.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12220011011001 its reverse (10011011002221), we get a palindrome (22231022013222).

The spelling of 12220011011001 in words is "twelve trillion, two hundred twenty billion, eleven million, eleven thousand, one".