1100021132 has 24 divisors (see below), whose sum is σ = 2224766880. Its totient is φ = 466139520.

The previous prime is 1100021129. The next prime is 1100021149. The reversal of 1100021132 is 2311200011.

It is a super-2 number, since 2×1100021132² = 2420092981693122848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218219 + ... + 223202.

It is an arithmetic number, because the mean of its divisors is an integer number (92698620).

Almost surely, 2^1100021132 is an apocalyptic number.

It is an amenable number.

1100021132 is an abundant number, since it is smaller than the sum of its proper divisors (1124745748).

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

1100021132 is a wasteful number, since it uses less digits than its factorization.

1100021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441521 (or 441519 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1100021132 is about 33166.5664789107. The cubic root of 1100021132 is about 1032.2867257605.

Adding to 1100021132 its reverse (2311200011), we get a palindrome (3411221143).

The spelling of 1100021132 in words is "one billion, one hundred million, twenty-one thousand, one hundred thirty-two".