2212111202021 has 8 divisors (see below), whose sum is σ = 2528159010624. Its totient is φ = 1896071374080.

The previous prime is 2212111202003. The next prime is 2212111202023. The reversal of 2212111202021 is 1202021112122.

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 2212111202021 - 2⁶ = 2212111201957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111202023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388915 + ... + 2520576.

It is an arithmetic number, because the mean of its divisors is an integer number (316019876328).

Almost surely, 2^{2212111202021} is an apocalyptic number.

It is an amenable number.

2212111202021 is a deficient number, since it is larger than the sum of its proper divisors (316047808603).

2212111202021 is an equidigital number, since it uses as much as digits as its factorization.

2212111202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990331.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2212111202021 its reverse (1202021112122), we get a palindrome (3414132314143).

The spelling of 2212111202021 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred two thousand, twenty-one".