201111121010 has 16 divisors (see below), whose sum is σ = 362022837696. Its totient is φ = 80439377328.

The previous prime is 201111120967. The next prime is 201111121033. The reversal of 201111121010 is 10121111102.

It is a junction number, because it is equal to n+sod(n) for n = 201111120982 and 201111121000.

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, 465182 + ... + 786521.

It is an arithmetic number, because the mean of its divisors is an integer number (22626427356).

Almost surely, 2^201111121010 is an apocalyptic number.

201111121010 is a deficient number, since it is larger than the sum of its proper divisors (160911716686).

201111121010 is a wasteful number, since it uses less digits than its factorization.

201111121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267777.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201111121010 its reverse (10121111102), we get a palindrome (211232232112).

The spelling of 201111121010 in words is "two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, ten".