245221122542 has 16 divisors (see below), whose sum is σ = 401295617712. Its totient is φ = 111457288320.

The previous prime is 245221122463. The next prime is 245221122563.

245221122542 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 245221122499 and 245221122508.

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, 31868 + ... + 701040.

It is an arithmetic number, because the mean of its divisors is an integer number (25080976107).

Almost surely, 2^245221122542 is an apocalyptic number.

245221122542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245221122542 is a deficient number, since it is larger than the sum of its proper divisors (156074495170).

245221122542 is a wasteful number, since it uses less digits than its factorization.

245221122542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685843.

The product of its digits is 25600, while the sum is 32.

It can be divided in two parts, 245221 and 122542, that added together give a palindrome (367763).

The spelling of 245221122542 in words is "two hundred forty-five billion, two hundred twenty-one million, one hundred twenty-two thousand, five hundred forty-two".