421253114522 has 4 divisors (see below), whose sum is σ = 631879671786. Its totient is φ = 210626557260.

The previous prime is 421253114509. The next prime is 421253114563. The reversal of 421253114522 is 225411352124.

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., 421072507801 + 180606721 = 648901^2 + 13439^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105313278629 + ... + 105313278632.

Almost surely, 2^421253114522 is an apocalyptic number.

421253114522 is a deficient number, since it is larger than the sum of its proper divisors (210626557264).

421253114522 is a wasteful number, since it uses less digits than its factorization.

421253114522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210626557263.

The product of its digits is 19200, while the sum is 32.

Adding to 421253114522 its reverse (225411352124), we get a palindrome (646664466646).

The spelling of 421253114522 in words is "four hundred twenty-one billion, two hundred fifty-three million, one hundred fourteen thousand, five hundred twenty-two".