201111222012212 has 24 divisors (see below), whose sum is σ = 373471097630400. Its totient is φ = 94553396934656.

The previous prime is 201111222012199. The next prime is 201111222012221. The reversal of 201111222012212 is 212210222111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18525346637 + ... + 18525357492.

It is an arithmetic number, because the mean of its divisors is an integer number (15561295734600).

Almost surely, 2^{201111222012212} is an apocalyptic number.

It is an amenable number.

201111222012212 is a deficient number, since it is larger than the sum of its proper divisors (172359875618188).

201111222012212 is a wasteful number, since it uses less digits than its factorization.

201111222012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37050704215 (or 37050704213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201111222012212 its reverse (212210222111102), we get a palindrome (413321444123314).

The spelling of 201111222012212 in words is "two hundred one trillion, one hundred eleven billion, two hundred twenty-two million, twelve thousand, two hundred twelve".