1222003130021 has 4 divisors (see below), whose sum is σ = 1222009315200. Its totient is φ = 1221996944844.

The previous prime is 1222003130011. The next prime is 1222003130041. The reversal of 1222003130021 is 1200313002221.

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 a cyclic number.

It is not a de Polignac number, because 1222003130021 - 2⁶ = 1222003129957 is a prime.

It is a super-2 number, since 2×1222003130021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222003130011) 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, 2786111 + ... + 3194748.

It is an arithmetic number, because the mean of its divisors is an integer number (305502328800).

Almost surely, 2^{1222003130021} is an apocalyptic number.

It is an amenable number.

1222003130021 is a deficient number, since it is larger than the sum of its proper divisors (6185179).

1222003130021 is an equidigital number, since it uses as much as digits as its factorization.

1222003130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185178.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1222003130021 its reverse (1200313002221), we get a palindrome (2422316132242).

The spelling of 1222003130021 in words is "one trillion, two hundred twenty-two billion, three million, one hundred thirty thousand, twenty-one".