2211211011021 has 8 divisors (see below), whose sum is σ = 2971496162304. Its totient is φ = 1462533266880.

The previous prime is 2211211010959. The next prime is 2211211011041. The reversal of 2211211011021 is 1201101121122.

It is a happy number.

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

It is not a de Polignac number, because 2211211011021 - 2¹³ = 2211211002829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211211011041) 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, 2901851340 + ... + 2901852101.

It is an arithmetic number, because the mean of its divisors is an integer number (371437020288).

Almost surely, 2^{2211211011021} is an apocalyptic number.

It is an amenable number.

2211211011021 is a deficient number, since it is larger than the sum of its proper divisors (760285151283).

2211211011021 is a wasteful number, since it uses less digits than its factorization.

2211211011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803703571.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2211211011021 its reverse (1201101121122), we get a palindrome (3412312132143).

The spelling of 2211211011021 in words is "two trillion, two hundred eleven billion, two hundred eleven million, eleven thousand, twenty-one".