220000012522 has 4 divisors (see below), whose sum is σ = 330000018786. Its totient is φ = 110000006260.

The previous prime is 220000012511. The next prime is 220000012537. The reversal of 220000012522 is 225210000022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 219268364121 + 731648401 = 468261^2 + 27049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220000012496 and 220000012505.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000003129 + ... + 55000003132.

Almost surely, 2^220000012522 is an apocalyptic number.

220000012522 is a deficient number, since it is larger than the sum of its proper divisors (110000006264).

220000012522 is a wasteful number, since it uses less digits than its factorization.

220000012522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110000006263.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 220000012522 its reverse (225210000022), we get a palindrome (445210012544).

The spelling of 220000012522 in words is "two hundred twenty billion, twelve thousand, five hundred twenty-two".