11011212010 has 16 divisors (see below), whose sum is σ = 19825358472. Its totient is φ = 4403334400.

The previous prime is 11011211999. The next prime is 11011212019. The reversal of 11011212010 is 1021211011.

It can be written as a sum of positive squares in 4 ways, for example, as 10265539761 + 745672249 = 101319^2 + 27307^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11011212019) 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, 103051 + ... + 180670.

Almost surely, 2^11011212010 is an apocalyptic number.

11011212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11011212010 is a deficient number, since it is larger than the sum of its proper divisors (8814146462).

11011212010 is a wasteful number, since it uses less digits than its factorization.

11011212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287609.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11011212010 its reverse (1021211011), we get a palindrome (12032423021).

Subtracting from 11011212010 its reverse (1021211011), we obtain a palindrome (9990000999).

The spelling of 11011212010 in words is "eleven billion, eleven million, two hundred twelve thousand, ten".