420102212 has 6 divisors (see below), whose sum is σ = 735178878. Its totient is φ = 210051104.

The previous prime is 420102209. The next prime is 420102227. The reversal of 420102212 is 212201024.

It can be written as a sum of positive squares in only one way, i.e., 402243136 + 17859076 = 20056^2 + 4226^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52512773 + ... + 52512780.

It is an arithmetic number, because the mean of its divisors is an integer number (122529813).

Almost surely, 2^420102212 is an apocalyptic number.

It is an amenable number.

420102212 is a deficient number, since it is larger than the sum of its proper divisors (315076666).

420102212 is a wasteful number, since it uses less digits than its factorization.

420102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105025557 (or 105025555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 420102212 is about 20496.3950976751. The cubic root of 420102212 is about 748.9479840027.

Adding to 420102212 its reverse (212201024), we get a palindrome (632303236).

The spelling of 420102212 in words is "four hundred twenty million, one hundred two thousand, two hundred twelve".