2243210111021 has 32 divisors (see below), whose sum is σ = 2480893608960. Its totient is φ = 2011276326400.

The previous prime is 2243210111017. The next prime is 2243210111057. The reversal of 2243210111021 is 1201110123422.

It is not a de Polignac number, because 2243210111021 - 2² = 2243210111017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243210110984 and 2243210111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243210111011) 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, 855859091 + ... + 855861711.

It is an arithmetic number, because the mean of its divisors is an integer number (77527925280).

Almost surely, 2^{2243210111021} is an apocalyptic number.

It is an amenable number.

2243210111021 is a deficient number, since it is larger than the sum of its proper divisors (237683497939).

2243210111021 is a wasteful number, since it uses less digits than its factorization.

2243210111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2243210111021 its reverse (1201110123422), we get a palindrome (3444320234443).

The spelling of 2243210111021 in words is "two trillion, two hundred forty-three billion, two hundred ten million, one hundred eleven thousand, twenty-one".