421110432111202 has 4 divisors (see below), whose sum is σ = 631665648166806. Its totient is φ = 210555216055600.

The previous prime is 421110432111197. The next prime is 421110432111209. The reversal of 421110432111202 is 202111234011124.

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., 420567851078001 + 542581033201 = 20507751^2 + 736601^2 .

It is a super-3 number, since 3×421110432111202³ (a number of 45 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (421110432111209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105277608027799 + ... + 105277608027802.

Almost surely, 2^{421110432111202} is an apocalyptic number.

421110432111202 is a deficient number, since it is larger than the sum of its proper divisors (210555216055604).

421110432111202 is a wasteful number, since it uses less digits than its factorization.

421110432111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210555216055603.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 421110432111202 its reverse (202111234011124), we get a palindrome (623221666122326).

The spelling of 421110432111202 in words is "four hundred twenty-one trillion, one hundred ten billion, four hundred thirty-two million, one hundred eleven thousand, two hundred two".