211012323021 has 32 divisors (see below), whose sum is σ = 329432451840. Its totient is φ = 133226280000.

The previous prime is 211012323007. The next prime is 211012323031. The reversal of 211012323021 is 120323210112.

It is not a de Polignac number, because 211012323021 - 2⁷ = 211012322893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211012322985 and 211012323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012323031) 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, 1619430 + ... + 1744871.

It is an arithmetic number, because the mean of its divisors is an integer number (10294764120).

Almost surely, 2^211012323021 is an apocalyptic number.

It is an amenable number.

211012323021 is a deficient number, since it is larger than the sum of its proper divisors (118420128819).

211012323021 is a wasteful number, since it uses less digits than its factorization.

211012323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364434 (or 3364428 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211012323021 its reverse (120323210112), we get a palindrome (331335533133).

The spelling of 211012323021 in words is "two hundred eleven billion, twelve million, three hundred twenty-three thousand, twenty-one".