1012012211 has 4 divisors (see below), whose sum is σ = 1156585392. Its totient is φ = 867439032.

The previous prime is 1012012201. The next prime is 1012012229. The reversal of 1012012211 is 1122102101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012012211 - 2¹⁴ = 1011995827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012012192 and 1012012201.

It is not an unprimeable number, because it can be changed into a prime (1012012201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72286580 + ... + 72286593.

It is an arithmetic number, because the mean of its divisors is an integer number (289146348).

Almost surely, 2^1012012211 is an apocalyptic number.

1012012211 is a deficient number, since it is larger than the sum of its proper divisors (144573181).

1012012211 is an equidigital number, since it uses as much as digits as its factorization.

1012012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144573180.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1012012211 is about 31812.1393653429. The cubic root of 1012012211 is about 1003.9881438974.

Adding to 1012012211 its reverse (1122102101), we get a palindrome (2134114312).

The spelling of 1012012211 in words is "one billion, twelve million, twelve thousand, two hundred eleven".