1011211000 has 96 divisors (see below), whose sum is σ = 2514330000. Its totient is φ = 380582400.

The previous prime is 1011210997. The next prime is 1011211013. The reversal of 1011211000 is 1121101.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 287251 + ... + 290749.

Almost surely, 2^1011211000 is an apocalyptic number.

1011211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257165000).

1011211000 is an abundant number, since it is smaller than the sum of its proper divisors (1503119000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011211000 is a wasteful number, since it uses less digits than its factorization.

1011211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3523 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1011211000 is about 31799.5440218881. The cubic root of 1011211000 is about 1003.7231211659.

Adding to 1011211000 its reverse (1121101), we get a palindrome (1012332101).

It can be divided in two parts, 10112 and 11000, that added together give a palindrome (21112).

The spelling of 1011211000 in words is "one billion, eleven million, two hundred eleven thousand".