12212021001021 has 32 divisors (see below), whose sum is σ = 17579082965760. Its totient is φ = 7517749983744.

The previous prime is 12212021001017. The next prime is 12212021001073. The reversal of 12212021001021 is 12010012021221.

It is not a de Polignac number, because 12212021001021 - 2² = 12212021001017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212021005021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13399761 + ... + 14282073.

It is an arithmetic number, because the mean of its divisors is an integer number (549346342680).

Almost surely, 2^{12212021001021} is an apocalyptic number.

It is an amenable number.

12212021001021 is a deficient number, since it is larger than the sum of its proper divisors (5367061964739).

12212021001021 is a wasteful number, since it uses less digits than its factorization.

12212021001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889285.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12212021001021 its reverse (12010012021221), we get a palindrome (24222033022242).

The spelling of 12212021001021 in words is "twelve trillion, two hundred twelve billion, twenty-one million, one thousand, twenty-one".