10203212212 has 12 divisors (see below), whose sum is σ = 17862858916. Its totient is φ = 5099538240.

The previous prime is 10203212209. The next prime is 10203212221. The reversal of 10203212212 is 21221230201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3904250256 + 6298961956 = 62484^2 + 79366^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505839 + ... + 525622.

Almost surely, 2^10203212212 is an apocalyptic number.

It is an amenable number.

10203212212 is a deficient number, since it is larger than the sum of its proper divisors (7659646704).

10203212212 is a wasteful number, since it uses less digits than its factorization.

10203212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033938 (or 1033936 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10203212212 its reverse (21221230201), we get a palindrome (31424442413).

It can be divided in two parts, 102032 and 12212, that added together give a square (114244 = 338²).

The spelling of 10203212212 in words is "ten billion, two hundred three million, two hundred twelve thousand, two hundred twelve".