2221240340231 has 16 divisors (see below), whose sum is σ = 2501466789888. Its totient is φ = 1954069845600.

The previous prime is 2221240340227. The next prime is 2221240340269. The reversal of 2221240340231 is 1320430421222.

It is a cyclic number.

It is not a de Polignac number, because 2221240340231 - 2² = 2221240340227 is a prime.

It is a super-2 number, since 2×2221240340231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2221240340231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221240340281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6907286 + ... + 7221708.

It is an arithmetic number, because the mean of its divisors is an integer number (156341674368).

Almost surely, 2^{2221240340231} is an apocalyptic number.

2221240340231 is a deficient number, since it is larger than the sum of its proper divisors (280226449657).

2221240340231 is a wasteful number, since it uses less digits than its factorization.

2221240340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335182.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2221240340231 its reverse (1320430421222), we get a palindrome (3541670761453).

The spelling of 2221240340231 in words is "two trillion, two hundred twenty-one billion, two hundred forty million, three hundred forty thousand, two hundred thirty-one".