2222242202421 has 12 divisors (see below), whose sum is σ = 3210021490572. Its totient is φ = 1481441222976.

The previous prime is 2222242202329. The next prime is 2222242202443. The reversal of 2222242202421 is 1242022422222.

It can be written as a sum of positive squares in 2 ways, for example, as 1501629668100 + 720612534321 = 1225410^2 + 848889^2 .

It is not a de Polignac number, because 2222242202421 - 2⁹ = 2222242201909 is a prime.

It is a super-2 number, since 2×2222242202421² (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 (2222242200421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4201386 + ... + 4700651.

It is an arithmetic number, because the mean of its divisors is an integer number (267501790881).

Almost surely, 2^{2222242202421} is an apocalyptic number.

It is an amenable number.

2222242202421 is a deficient number, since it is larger than the sum of its proper divisors (987779288151).

2222242202421 is a wasteful number, since it uses less digits than its factorization.

2222242202421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8929780 (or 8929777 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 2222242202421 its reverse (1242022422222), we get a palindrome (3464264624643).

The spelling of 2222242202421 in words is "two trillion, two hundred twenty-two billion, two hundred forty-two million, two hundred two thousand, four hundred twenty-one".