201111112101102 has 64 divisors (see below), whose sum is σ = 459806588043264. Its totient is φ = 57444813669600.

The previous prime is 201111112101091. The next prime is 201111112101217. The reversal of 201111112101102 is 201101211111102.

It is a super-2 number, since 2×201111112101102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4702462123 + ... + 4702504889.

It is an arithmetic number, because the mean of its divisors is an integer number (7184477938176).

Almost surely, 2^{201111112101102} is an apocalyptic number.

201111112101102 is an abundant number, since it is smaller than the sum of its proper divisors (258695475942162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111112101102 is a wasteful number, since it uses less digits than its factorization.

201111112101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70373.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 201111112101102 its reverse (201101211111102), we get a palindrome (402212323212204).

The spelling of 201111112101102 in words is "two hundred one trillion, one hundred eleven billion, one hundred twelve million, one hundred one thousand, one hundred two".