22011121011001 has 4 divisors (see below), whose sum is σ = 22094813486592. Its totient is φ = 21927428535412.

The previous prime is 22011121010947. The next prime is 22011121011013. The reversal of 22011121011001 is 10011012111022.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 22011121011001 - 2¹³ = 22011121002809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011121011041) 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, 41846237401 + ... + 41846237926.

It is an arithmetic number, because the mean of its divisors is an integer number (5523703371648).

Almost surely, 2^{22011121011001} is an apocalyptic number.

It is an amenable number.

22011121011001 is a deficient number, since it is larger than the sum of its proper divisors (83692475591).

22011121011001 is an equidigital number, since it uses as much as digits as its factorization.

22011121011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83692475590.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22011121011001 its reverse (10011012111022), we get a palindrome (32022133122023).

The spelling of 22011121011001 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, eleven thousand, one".