421044500523202 has 16 divisors (see below), whose sum is σ = 637223529218040. Its totient is φ = 208637053311232.

The previous prime is 421044500523169. The next prime is 421044500523307. The reversal of 421044500523202 is 202325005440124.

It can be written as a sum of positive squares in 4 ways, for example, as 411768875983921 + 9275624539281 = 20292089^2 + 3045591^2 .

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, 96833077 + ... + 101087752.

Almost surely, 2^{421044500523202} is an apocalyptic number.

421044500523202 is a deficient number, since it is larger than the sum of its proper divisors (216179028694838).

421044500523202 is a wasteful number, since it uses less digits than its factorization.

421044500523202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197930357.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 421044500523202 its reverse (202325005440124), we get a palindrome (623369505963326).

The spelling of 421044500523202 in words is "four hundred twenty-one trillion, forty-four billion, five hundred million, five hundred twenty-three thousand, two hundred two".