1210011011 has 12 divisors (see below), whose sum is σ = 1335344472. Its totient is φ = 1095600000.

The previous prime is 1210010957. The next prime is 1210011031. The reversal of 1210011011 is 1101100121.

It is a happy number.

It is not a de Polignac number, because 1210011011 - 2⁶ = 1210010947 is a prime.

1210011011 is a modest number, since divided by 11011 gives 1210 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1210011011.

It is not an unprimeable number, because it can be changed into a prime (1210011031) 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, 10451 + ... + 50291.

It is an arithmetic number, because the mean of its divisors is an integer number (111278706).

Almost surely, 2^1210011011 is an apocalyptic number.

1210011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1210011011 is a deficient number, since it is larger than the sum of its proper divisors (125333461).

1210011011 is a wasteful number, since it uses less digits than its factorization.

1210011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40114 (or 40103 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1210011011 is about 34785.2125334890. The cubic root of 1210011011 is about 1065.6054690836.

Adding to 1210011011 its reverse (1101100121), we get a palindrome (2311111132).

It can be divided in two parts, 12100110 and 11, that added together give a palindrome (12100121).

The spelling of 1210011011 in words is "one billion, two hundred ten million, eleven thousand, eleven".