212210431402 has 8 divisors (see below), whose sum is σ = 319964951556. Its totient is φ = 105555447552.

The previous prime is 212210431399. The next prime is 212210431423. The reversal of 212210431402 is 204134012212.

212210431402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 188426314561 + 23784116841 = 434081^2 + 154221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274883593 + ... + 274884364.

Almost surely, 2^212210431402 is an apocalyptic number.

212210431402 is a deficient number, since it is larger than the sum of its proper divisors (107754520154).

212210431402 is a wasteful number, since it uses less digits than its factorization.

212210431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549768152.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212210431402 its reverse (204134012212), we get a palindrome (416344443614).

The spelling of 212210431402 in words is "two hundred twelve billion, two hundred ten million, four hundred thirty-one thousand, four hundred two".