20212030211331 has 32 divisors (see below), whose sum is σ = 31518227918848. Its totient is φ = 11280173335200.

The previous prime is 20212030211299. The next prime is 20212030211333. The reversal of 20212030211331 is 13311203021202.

It is not a de Polignac number, because 20212030211331 - 2⁵ = 20212030211299 is a prime.

It is a super-2 number, since 2×20212030211331² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212030211298 and 20212030211307.

It is not an unprimeable number, because it can be changed into a prime (20212030211333) 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, 9733506 + ... + 11626056.

It is an arithmetic number, because the mean of its divisors is an integer number (984944622464).

Almost surely, 2^{20212030211331} is an apocalyptic number.

20212030211331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20212030211331 is a deficient number, since it is larger than the sum of its proper divisors (11306197707517).

20212030211331 is a wasteful number, since it uses less digits than its factorization.

20212030211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904431.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20212030211331 its reverse (13311203021202), we get a palindrome (33523233232533).

The spelling of 20212030211331 in words is "twenty trillion, two hundred twelve billion, thirty million, two hundred eleven thousand, three hundred thirty-one".