22111220001201 has 16 divisors (see below), whose sum is σ = 30281414674368. Its totient is φ = 14340997944000.

The previous prime is 22111220001197. The next prime is 22111220001263. The reversal of 22111220001201 is 10210002211122.

It is not a de Polignac number, because 22111220001201 - 2² = 22111220001197 is a prime.

It is a super-2 number, since 2×22111220001201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22111220001281) 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, 8695875 + ... + 10947176.

It is an arithmetic number, because the mean of its divisors is an integer number (1892588417148).

Almost surely, 2^{22111220001201} is an apocalyptic number.

It is an amenable number.

22111220001201 is a deficient number, since it is larger than the sum of its proper divisors (8170194673167).

22111220001201 is a wasteful number, since it uses less digits than its factorization.

22111220001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19653232.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111220001201 its reverse (10210002211122), we get a palindrome (32321222212323).

The spelling of 22111220001201 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, one thousand, two hundred one".