2221200211021 has 8 divisors (see below), whose sum is σ = 2423138493600. Its totient is φ = 2019263760240.

The previous prime is 2221200210947. The next prime is 2221200211057. The reversal of 2221200211021 is 1201120021222.

It is a happy number.

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 2221200211021 - 2¹⁹ = 2221199686733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221200210986 and 2221200211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221200214021) 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, 3793710 + ... + 4339888.

It is an arithmetic number, because the mean of its divisors is an integer number (302892311700).

Almost surely, 2^{2221200211021} is an apocalyptic number.

It is an amenable number.

2221200211021 is a deficient number, since it is larger than the sum of its proper divisors (201938282579).

2221200211021 is a wasteful number, since it uses less digits than its factorization.

2221200211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915899.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221200211021 its reverse (1201120021222), we get a palindrome (3422320232243).

The spelling of 2221200211021 in words is "two trillion, two hundred twenty-one billion, two hundred million, two hundred eleven thousand, twenty-one".