1000122011 has 8 divisors (see below), whose sum is σ = 1143229920. Its totient is φ = 857072448.

The previous prime is 1000122007. The next prime is 1000122017. The reversal of 1000122011 is 1102210001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000122011 - 2² = 1000122007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000122011.

It is not an unprimeable number, because it can be changed into a prime (1000122017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32135 + ... + 55071.

It is an arithmetic number, because the mean of its divisors is an integer number (142903740).

Almost surely, 2^1000122011 is an apocalyptic number.

1000122011 is a deficient number, since it is larger than the sum of its proper divisors (143107909).

1000122011 is an equidigital number, since it uses as much as digits as its factorization.

1000122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29173.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1000122011 is about 31624.7057061406. The cubic root of 1000122011 is about 1000.0406686794.

Adding to 1000122011 its reverse (1102210001), we get a palindrome (2102332012).

The spelling of 1000122011 in words is "one billion, one hundred twenty-two thousand, eleven".