1222122022001 has 6 divisors (see below), whose sum is σ = 1277568012210. Its totient is φ = 1168986281408.

The previous prime is 1222122021973. The next prime is 1222122022007. The reversal of 1222122022001 is 1002202212221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 628912441600 + 593209580401 = 793040^2 + 770201^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1222122022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222122022007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1155124256 + ... + 1155125313.

It is an arithmetic number, because the mean of its divisors is an integer number (212928002035).

Almost surely, 2^{1222122022001} is an apocalyptic number.

It is an amenable number.

1222122022001 is a deficient number, since it is larger than the sum of its proper divisors (55445990209).

1222122022001 is an equidigital number, since it uses as much as digits as its factorization.

1222122022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310249615 (or 2310249592 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222122022001 its reverse (1002202212221), we get a palindrome (2224324234222).

The spelling of 1222122022001 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-two thousand, one".