1222212012001 has 8 divisors (see below), whose sum is σ = 1226537753000. Its totient is φ = 1217890978560.

The previous prime is 1222212011987. The next prime is 1222212012037. The reversal of 1222212012001 is 1002102122221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77868344401 + 1144343667600 = 279049^2 + 1069740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222212012001 - 2²⁵ = 1222178457569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222212012601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656310 + ... + 1695631.

It is an arithmetic number, because the mean of its divisors is an integer number (153317219125).

Almost surely, 2^{1222212012001} is an apocalyptic number.

It is an amenable number.

1222212012001 is a deficient number, since it is larger than the sum of its proper divisors (4325740999).

1222212012001 is a wasteful number, since it uses less digits than its factorization.

1222212012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353779.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222212012001 its reverse (1002102122221), we get a palindrome (2224314134222).

The spelling of 1222212012001 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, twelve thousand, one".