10201121018 has 16 divisors (see below), whose sum is σ = 16695897984. Its totient is φ = 4635996960.

The previous prime is 10201121017. The next prime is 10201121089. The reversal of 10201121018 is 81012110201.

It is a junction number, because it is equal to n+sod(n) for n = 10201120987 and 10201121005.

It is not an unprimeable number, because it can be changed into a prime (10201121011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83471 + ... + 165437.

It is an arithmetic number, because the mean of its divisors is an integer number (1043493624).

Almost surely, 2^10201121018 is an apocalyptic number.

10201121018 is a deficient number, since it is larger than the sum of its proper divisors (6494776966).

10201121018 is a wasteful number, since it uses less digits than its factorization.

10201121018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87637.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10201121018 its reverse (81012110201), we get a palindrome (91213231219).

The spelling of 10201121018 in words is "ten billion, two hundred one million, one hundred twenty-one thousand, eighteen".