22111121001 has 16 divisors (see below), whose sum is σ = 31417841664. Its totient is φ = 13799846544.

The previous prime is 22111120979. The next prime is 22111121023. The reversal of 22111121001 is 10012111122.

It is an interprime number because it is at equal distance from previous prime (22111120979) and next prime (22111121023).

It is not a de Polignac number, because 22111121001 - 2¹⁹ = 22110596713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22111121051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3405811 + ... + 3412296.

It is an arithmetic number, because the mean of its divisors is an integer number (1963615104).

Almost surely, 2^22111121001 is an apocalyptic number.

It is an amenable number.

22111121001 is a deficient number, since it is larger than the sum of its proper divisors (9306720663).

22111121001 is a wasteful number, since it uses less digits than its factorization.

22111121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818180.

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

Adding to 22111121001 its reverse (10012111122), we get a palindrome (32123232123).

The spelling of 22111121001 in words is "twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, one".