1012201011 has 6 divisors (see below), whose sum is σ = 1462068140. Its totient is φ = 674800668.

The previous prime is 1012200947. The next prime is 1012201013. The reversal of 1012201011 is 1101022101.

It is a happy number.

It is not a de Polignac number, because 1012201011 - 2⁶ = 1012200947 is a prime.

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: 112466779 = 1012201011 / (1 + 0 + 1 + 2 + 2 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012200984 and 1012201002.

It is not an unprimeable number, because it can be changed into a prime (1012201013) 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, 56233381 + ... + 56233398.

Almost surely, 2^1012201011 is an apocalyptic number.

1012201011 is a deficient number, since it is larger than the sum of its proper divisors (449867129).

1012201011 is a wasteful number, since it uses less digits than its factorization.

1012201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112466785 (or 112466782 counting only the distinct ones).

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

The square root of 1012201011 is about 31815.1066476289. The cubic root of 1012201011 is about 1004.0505743612.

Adding to 1012201011 its reverse (1101022101), we get a palindrome (2113223112).

The spelling of 1012201011 in words is "one billion, twelve million, two hundred one thousand, eleven".