22011220001201 has 4 divisors (see below), whose sum is σ = 22012383957504. Its totient is φ = 22010056044900.

The previous prime is 22011220001171. The next prime is 22011220001231. The reversal of 22011220001201 is 10210002211022.

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 an interprime number because it is at equal distance from previous prime (22011220001171) and next prime (22011220001231).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011220001201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011220001231) 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, 581949785 + ... + 581987606.

It is an arithmetic number, because the mean of its divisors is an integer number (5503095989376).

Almost surely, 2^{22011220001201} is an apocalyptic number.

It is an amenable number.

22011220001201 is a deficient number, since it is larger than the sum of its proper divisors (1163956303).

22011220001201 is a wasteful number, since it uses less digits than its factorization.

22011220001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163956302.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011220001201 its reverse (10210002211022), we get a palindrome (32221222212223).

The spelling of 22011220001201 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one thousand, two hundred one".