20572035072422 has 4 divisors (see below), whose sum is σ = 30858052608636. Its totient is φ = 10286017536210.

The previous prime is 20572035072409. The next prime is 20572035072439. The reversal of 20572035072422 is 22427053027502.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20572035072422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5143008768104 + ... + 5143008768107.

It is an arithmetic number, because the mean of its divisors is an integer number (7714513152159).

Almost surely, 2^{20572035072422} is an apocalyptic number.

20572035072422 is a deficient number, since it is larger than the sum of its proper divisors (10286017536214).

20572035072422 is a wasteful number, since it uses less digits than its factorization.

20572035072422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286017536213.

The product of its (nonzero) digits is 470400, while the sum is 41.

Adding to 20572035072422 its reverse (22427053027502), we get a palindrome (42999088099924).

The spelling of 20572035072422 in words is "twenty trillion, five hundred seventy-two billion, thirty-five million, seventy-two thousand, four hundred twenty-two".