210111222211012 has 6 divisors (see below), whose sum is σ = 367694638869278. Its totient is φ = 105055611105504.

The previous prime is 210111222210991. The next prime is 210111222211081. The reversal of 210111222211012 is 210112222111012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106932434182596 + 103178788028416 = 10340814^2 + 10157696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26263902776373 + ... + 26263902776380.

Almost surely, 2^{210111222211012} is an apocalyptic number.

It is an amenable number.

210111222211012 is a deficient number, since it is larger than the sum of its proper divisors (157583416658266).

210111222211012 is a wasteful number, since it uses less digits than its factorization.

210111222211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52527805552757 (or 52527805552755 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210111222211012 its reverse (210112222111012), we get a palindrome (420223444322024).

The spelling of 210111222211012 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, twelve".