1012201101 has 6 divisors (see below), whose sum is σ = 1462068270. Its totient is φ = 674800728.

The previous prime is 1012201087. The next prime is 1012201103. The reversal of 1012201101 is 1011022101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 752185476 + 260015625 = 27426^2 + 16125^2 .

It is not a de Polignac number, because 1012201101 - 2⁹ = 1012200589 is a prime.

It is a super-2 number, since 2×1012201101² = 2049102137731224402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 112466789 = 1012201101 / (1 + 0 + 1 + 2 + 2 + 0 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56233386 + ... + 56233403.

It is an arithmetic number, because the mean of its divisors is an integer number (243678045).

Almost surely, 2^1012201101 is an apocalyptic number.

It is an amenable number.

1012201101 is a deficient number, since it is larger than the sum of its proper divisors (449867169).

1012201101 is a wasteful number, since it uses less digits than its factorization.

1012201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112466795 (or 112466792 counting only the distinct ones).

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

The square root of 1012201101 is about 31815.1080620513. The cubic root of 1012201101 is about 1004.0506041196.

Adding to 1012201101 its reverse (1011022101), we get a palindrome (2023223202).

The spelling of 1012201101 in words is "one billion, twelve million, two hundred one thousand, one hundred one".