21022212201201 has 12 divisors (see below), whose sum is σ = 30368598372112. Its totient is φ = 14013340096536.

The previous prime is 21022212201187. The next prime is 21022212201239. The reversal of 21022212201201 is 10210221222012.

It is a happy number.

21022212201201 is a `hidden beast` number, since 2 + 102 + 221 + 220 + 120 + 1 = 666.

It is not a de Polignac number, because 21022212201201 - 2¹⁴ = 21022212184817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022212201301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122245771 + ... + 122417616.

Almost surely, 2^{21022212201201} is an apocalyptic number.

It is an amenable number.

21022212201201 is a deficient number, since it is larger than the sum of its proper divisors (9346386170911).

21022212201201 is a wasteful number, since it uses less digits than its factorization.

21022212201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244672940 (or 244672937 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21022212201201 its reverse (10210221222012), we get a palindrome (31232433423213).

The spelling of 21022212201201 in words is "twenty-one trillion, twenty-two billion, two hundred twelve million, two hundred one thousand, two hundred one".