22221240340245 has 32 divisors (see below), whose sum is σ = 37473946012800. Its totient is φ = 11226762403584.

The previous prime is 22221240340231. The next prime is 22221240340253. The reversal of 22221240340245 is 54204304212222.

It is not a de Polignac number, because 22221240340245 - 2¹¹ = 22221240338197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481894975 + ... + 481941084.

It is an arithmetic number, because the mean of its divisors is an integer number (1171060812900).

Almost surely, 2^{22221240340245} is an apocalyptic number.

It is an amenable number.

22221240340245 is a deficient number, since it is larger than the sum of its proper divisors (15252705672555).

22221240340245 is a wasteful number, since it uses less digits than its factorization.

22221240340245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963836149.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 22221240340245 its reverse (54204304212222), we get a palindrome (76425544552467).

The spelling of 22221240340245 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred forty million, three hundred forty thousand, two hundred forty-five".