2221211022201 has 12 divisors (see below), whose sum is σ = 3276680090112. Its totient is φ = 1449300808536.

The previous prime is 2221211022197. The next prime is 2221211022211. The reversal of 2221211022201 is 1022201121222.

It is a happy number.

2221211022201 is a `hidden beast` number, since 222 + 121 + 102 + 220 + 1 = 666.

It is not a de Polignac number, because 2221211022201 - 2² = 2221211022197 is a prime.

It is a super-2 number, since 2×2221211022201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221211022211) 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, 2625544521 + ... + 2625545366.

It is an arithmetic number, because the mean of its divisors is an integer number (273056674176).

Almost surely, 2^{2221211022201} is an apocalyptic number.

It is an amenable number.

2221211022201 is a deficient number, since it is larger than the sum of its proper divisors (1055469067911).

2221211022201 is a wasteful number, since it uses less digits than its factorization.

2221211022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251089940 (or 5251089937 counting only the distinct ones).

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

Adding to 2221211022201 its reverse (1022201121222), we get a palindrome (3243412143423).

The spelling of 2221211022201 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred one".