211432223402 has 32 divisors (see below), whose sum is σ = 340220606400. Its totient is φ = 98238935808.

The previous prime is 211432223381. The next prime is 211432223417. The reversal of 211432223402 is 204322234112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10658249 + ... + 10678067.

It is an arithmetic number, because the mean of its divisors is an integer number (10631893950).

Almost surely, 2^211432223402 is an apocalyptic number.

211432223402 is a deficient number, since it is larger than the sum of its proper divisors (128788382998).

211432223402 is a wasteful number, since it uses less digits than its factorization.

211432223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25190.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 211432223402 its reverse (204322234112), we get a palindrome (415754457514).

The spelling of 211432223402 in words is "two hundred eleven billion, four hundred thirty-two million, two hundred twenty-three thousand, four hundred two".