12001021000022 has 32 divisors (see below), whose sum is σ = 19094491946880. Its totient is φ = 5637452951680.

The previous prime is 12001021000021. The next prime is 12001021000051. The reversal of 12001021000022 is 22000012010021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12001020999967 and 12001021000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001021000021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419323229 + ... + 419351847.

It is an arithmetic number, because the mean of its divisors is an integer number (596702873340).

Almost surely, 2^{12001021000022} is an apocalyptic number.

12001021000022 is a deficient number, since it is larger than the sum of its proper divisors (7093470946858).

12001021000022 is a wasteful number, since it uses less digits than its factorization.

12001021000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50236.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12001021000022 its reverse (22000012010021), we get a palindrome (34001033010043).

The spelling of 12001021000022 in words is "twelve trillion, one billion, twenty-one million, twenty-two", and thus it is an aban number and an uban number.