421433100212 has 12 divisors (see below), whose sum is σ = 737515484580. Its totient is φ = 210714390336.

The previous prime is 421433100203. The next prime is 421433100217. The reversal of 421433100212 is 212001334124.

It can be written as a sum of positive squares in 2 ways, for example, as 381622475536 + 39810624676 = 617756^2 + 199526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421433100217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51887 + ... + 919542.

It is an arithmetic number, because the mean of its divisors is an integer number (61459623715).

Almost surely, 2^421433100212 is an apocalyptic number.

It is an amenable number.

421433100212 is a deficient number, since it is larger than the sum of its proper divisors (316082384368).

421433100212 is a wasteful number, since it uses less digits than its factorization.

421433100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079890 (or 1079888 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 421433100212 its reverse (212001334124), we get a palindrome (633434434336).

The spelling of 421433100212 in words is "four hundred twenty-one billion, four hundred thirty-three million, one hundred thousand, two hundred twelve".