10111020201 has 12 divisors (see below), whose sum is σ = 15108421380. Its totient is φ = 6508242720.

The previous prime is 10111020193. The next prime is 10111020287. The reversal of 10111020201 is 10202011101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3505232025 + 6605788176 = 59205^2 + 81276^2 .

It is not a de Polignac number, because 10111020201 - 2³ = 10111020193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10111020001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19369510 + ... + 19370031.

It is an arithmetic number, because the mean of its divisors is an integer number (1259035115).

Almost surely, 2^10111020201 is an apocalyptic number.

It is an amenable number.

10111020201 is a deficient number, since it is larger than the sum of its proper divisors (4997401179).

10111020201 is a wasteful number, since it uses less digits than its factorization.

10111020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38739576 (or 38739573 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10111020201 its reverse (10202011101), we get a palindrome (20313031302).

The spelling of 10111020201 in words is "ten billion, one hundred eleven million, twenty thousand, two hundred one".