1051212011 has 4 divisors (see below), whose sum is σ = 1073578272. Its totient is φ = 1028845752.

The previous prime is 1051211969. The next prime is 1051212037. The reversal of 1051212011 is 1102121501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051212011 is a prime.

It is a super-2 number, since 2×1051212011² = 2210093384141328242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051212091) 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 3 ways as a sum of consecutive naturals, for example, 11183060 + ... + 11183153.

It is an arithmetic number, because the mean of its divisors is an integer number (268394568).

Almost surely, 2^1051212011 is an apocalyptic number.

1051212011 is a deficient number, since it is larger than the sum of its proper divisors (22366261).

1051212011 is an equidigital number, since it uses as much as digits as its factorization.

1051212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22366260.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1051212011 is about 32422.3998340653. The cubic root of 1051212011 is about 1016.7872805870.

Adding to 1051212011 its reverse (1102121501), we get a palindrome (2153333512).

The spelling of 1051212011 in words is "one billion, fifty-one million, two hundred twelve thousand, eleven".