212021031001 has 16 divisors (see below), whose sum is σ = 244821830400. Its totient is φ = 181867615488.

The previous prime is 212021030971. The next prime is 212021031011. The reversal of 212021031001 is 100130120212.

It is not a de Polignac number, because 212021031001 - 2⁷ = 212021030873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021031011) 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 15 ways as a sum of consecutive naturals, for example, 6054511 + ... + 6089428.

It is an arithmetic number, because the mean of its divisors is an integer number (15301364400).

Almost surely, 2^212021031001 is an apocalyptic number.

It is an amenable number.

212021031001 is a deficient number, since it is larger than the sum of its proper divisors (32800799399).

212021031001 is a wasteful number, since it uses less digits than its factorization.

212021031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144048.

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

Adding to 212021031001 its reverse (100130120212), we get a palindrome (312151151213).

The spelling of 212021031001 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, one".