22121211110011 has 4 divisors (see below), whose sum is σ = 23822842733872. Its totient is φ = 20419579486152.

The previous prime is 22121211109981. The next prime is 22121211110029. The reversal of 22121211110011 is 11001111212122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22121211110011 - 2²³ = 22121202721403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121211110041) 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, 850815811911 + ... + 850815811936.

It is an arithmetic number, because the mean of its divisors is an integer number (5955710683468).

Almost surely, 2^{22121211110011} is an apocalyptic number.

22121211110011 is a deficient number, since it is larger than the sum of its proper divisors (1701631623861).

22121211110011 is a wasteful number, since it uses less digits than its factorization.

22121211110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701631623860.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 22121211110011 its reverse (11001111212122), we get a palindrome (33122322322133).

It can be divided in two parts, 221212111 and 10011, that added together give a palindrome (221222122).

The spelling of 22121211110011 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred ten thousand, eleven".