222400002523542 has 16 divisors (see below), whose sum is σ = 444805361273280. Its totient is φ = 74132441470152.

The previous prime is 222400002523487. The next prime is 222400002523619. The reversal of 222400002523542 is 245325200004222.

It is a super-2 number, since 2×222400002523542² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222636208 + ... + 223632915.

It is an arithmetic number, because the mean of its divisors is an integer number (27800335079580).

Almost surely, 2^{222400002523542} is an apocalyptic number.

222400002523542 is an abundant number, since it is smaller than the sum of its proper divisors (222405358749738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222400002523542 is a wasteful number, since it uses less digits than its factorization.

222400002523542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446352187.

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 222400002523542 its reverse (245325200004222), we get a palindrome (467725202527764).

The spelling of 222400002523542 in words is "two hundred twenty-two trillion, four hundred billion, two million, five hundred twenty-three thousand, five hundred forty-two".