212247102 has 32 divisors (see below), whose sum is σ = 432190080. Its totient is φ = 69476960.

The previous prime is 212247067. The next prime is 212247103. The reversal of 212247102 is 201742212.

212247102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212247103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87952 + ... + 90332.

It is an arithmetic number, because the mean of its divisors is an integer number (13505940).

Almost surely, 2^212247102 is an apocalyptic number.

212247102 is an abundant number, since it is smaller than the sum of its proper divisors (219942978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212247102 is a wasteful number, since it uses less digits than its factorization.

212247102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 212247102 is about 14568.7028248914. The cubic root of 212247102 is about 596.5047729612.

Adding to 212247102 its reverse (201742212), we get a palindrome (413989314).

The spelling of 212247102 in words is "two hundred twelve million, two hundred forty-seven thousand, one hundred two".