1101012201 has 12 divisors (see below), whose sum is σ = 1591677828. Its totient is φ = 733395744.

The previous prime is 1101012197. The next prime is 1101012257. The reversal of 1101012201 is 1022101011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91298025 + 1009714176 = 9555^2 + 31776^2 .

It is not a de Polignac number, because 1101012201 - 2² = 1101012197 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 (1101016201) 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, 39510 + ... + 61343.

It is an arithmetic number, because the mean of its divisors is an integer number (132639819).

Almost surely, 2^1101012201 is an apocalyptic number.

It is an amenable number.

1101012201 is a deficient number, since it is larger than the sum of its proper divisors (490665627).

1101012201 is a wasteful number, since it uses less digits than its factorization.

1101012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102072 (or 102069 counting only the distinct ones).

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

The square root of 1101012201 is about 33181.5038990098. The cubic root of 1101012201 is about 1032.5966471645.

Adding to 1101012201 its reverse (1022101011), we get a palindrome (2123113212).

The spelling of 1101012201 in words is "one billion, one hundred one million, twelve thousand, two hundred one".