20212003331 has 32 divisors (see below), whose sum is σ = 23515860480. Its totient is φ = 17211398400.

The previous prime is 20212003121. The next prime is 20212003397. The reversal of 20212003331 is 13330021202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212003331 is a prime.

It is a super-2 number, since 2×20212003331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212023331) 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, 6388556 + ... + 6391718.

It is an arithmetic number, because the mean of its divisors is an integer number (734870640).

Almost surely, 2^20212003331 is an apocalyptic number.

20212003331 is a deficient number, since it is larger than the sum of its proper divisors (3303857149).

20212003331 is a wasteful number, since it uses less digits than its factorization.

20212003331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20212003331 its reverse (13330021202), we get a palindrome (33542024533).

The spelling of 20212003331 in words is "twenty billion, two hundred twelve million, three thousand, three hundred thirty-one".