2212111200021 has 8 divisors (see below), whose sum is σ = 3077719930560. Its totient is φ = 1410621634752.

The previous prime is 2212111199999. The next prime is 2212111200041. The reversal of 2212111200021 is 1200021112122.

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

It is not a de Polignac number, because 2212111200021 - 2⁹ = 2212111199509 is a prime.

It is a super-2 number, since 2×2212111200021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111200041) 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, 16029791236 + ... + 16029791373.

It is an arithmetic number, because the mean of its divisors is an integer number (384714991320).

Almost surely, 2^{2212111200021} is an apocalyptic number.

It is an amenable number.

2212111200021 is a deficient number, since it is larger than the sum of its proper divisors (865608730539).

2212111200021 is a wasteful number, since it uses less digits than its factorization.

2212111200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32059582635.

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

Adding to 2212111200021 its reverse (1200021112122), we get a palindrome (3412132312143).

The spelling of 2212111200021 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred thousand, twenty-one".