2101021132 has 24 divisors (see below), whose sum is σ = 4203166464. Its totient is φ = 900196752.

The previous prime is 2101021127. The next prime is 2101021133. The reversal of 2101021132 is 2311201012.

It is a super-2 number, since 2×2101021132² = 8828579594221122848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101021133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 131523 + ... + 146629.

It is an arithmetic number, because the mean of its divisors is an integer number (175131936).

Almost surely, 2^2101021132 is an apocalyptic number.

It is an amenable number.

2101021132 is an abundant number, since it is smaller than the sum of its proper divisors (2102145332).

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

2101021132 is a wasteful number, since it uses less digits than its factorization.

2101021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20085 (or 20083 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2101021132 is about 45836.8970590288. The cubic root of 2101021132 is about 1280.7866933165.

Adding to 2101021132 its reverse (2311201012), we get a palindrome (4412222144).

The spelling of 2101021132 in words is "two billion, one hundred one million, twenty-one thousand, one hundred thirty-two".