1011211330 has 64 divisors (see below), whose sum is σ = 1941096960. Its totient is φ = 378487296.

The previous prime is 1011211321. The next prime is 1011211339. The reversal of 1011211330 is 331121101.

It is an interprime number because it is at equal distance from previous prime (1011211321) and next prime (1011211339).

It is a self number, because there is not a number n which added to its sum of digits gives 1011211330.

It is not an unprimeable number, because it can be changed into a prime (1011211339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3844779 + ... + 3845041.

It is an arithmetic number, because the mean of its divisors is an integer number (30329640).

Almost surely, 2^1011211330 is an apocalyptic number.

1011211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011211330 is a deficient number, since it is larger than the sum of its proper divisors (929885630).

1011211330 is a wasteful number, since it uses less digits than its factorization.

1011211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1011211330 is about 31799.5492106413. The cubic root of 1011211330 is about 1003.7232303514.

Adding to 1011211330 its reverse (331121101), we get a palindrome (1342332431).

The spelling of 1011211330 in words is "one billion, eleven million, two hundred eleven thousand, three hundred thirty".