1211151010 has 32 divisors (see below), whose sum is σ = 2296794240. Its totient is φ = 458566272.

The previous prime is 1211150999. The next prime is 1211151047. The reversal of 1211151010 is 101511121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312907 + ... + 316753.

It is an arithmetic number, because the mean of its divisors is an integer number (71774820).

Almost surely, 2^1211151010 is an apocalyptic number.

1211151010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211151010 is a deficient number, since it is larger than the sum of its proper divisors (1085643230).

1211151010 is a wasteful number, since it uses less digits than its factorization.

1211151010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 1211151010 is about 34801.5949347153. The cubic root of 1211151010 is about 1065.9400136614.

Adding to 1211151010 its reverse (101511121), we get a palindrome (1312662131).

The spelling of 1211151010 in words is "one billion, two hundred eleven million, one hundred fifty-one thousand, ten".