201211111022122 has 8 divisors (see below), whose sum is σ = 303502793162400. Its totient is φ = 100043513301324.

The previous prime is 201211111022099. The next prime is 201211111022143. The reversal of 201211111022122 is 221220111112102.

It is a happy number.

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

It is a super-2 number, since 2×201211111022122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201211111022122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281021104422 + ... + 281021105137.

It is an arithmetic number, because the mean of its divisors is an integer number (37937849145300).

Almost surely, 2^{201211111022122} is an apocalyptic number.

201211111022122 is a deficient number, since it is larger than the sum of its proper divisors (102291682140278).

201211111022122 is a wasteful number, since it uses less digits than its factorization.

201211111022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562042209740.

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

Adding to 201211111022122 its reverse (221220111112102), we get a palindrome (422431222134224).

The spelling of 201211111022122 in words is "two hundred one trillion, two hundred eleven billion, one hundred eleven million, twenty-two thousand, one hundred twenty-two".