211310203230122 has 4 divisors (see below), whose sum is σ = 316965304845186. Its totient is φ = 105655101615060.

The previous prime is 211310203230107. The next prime is 211310203230131. The reversal of 211310203230122 is 221032302013112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 186306093061201 + 25004110168921 = 13649399^2 + 5000411^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52827550807529 + ... + 52827550807532.

Almost surely, 2^{211310203230122} is an apocalyptic number.

211310203230122 is a deficient number, since it is larger than the sum of its proper divisors (105655101615064).

211310203230122 is a wasteful number, since it uses less digits than its factorization.

211310203230122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105655101615063.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211310203230122 its reverse (221032302013112), we get a palindrome (432342505243234).

The spelling of 211310203230122 in words is "two hundred eleven trillion, three hundred ten billion, two hundred three million, two hundred thirty thousand, one hundred twenty-two".