2021212030031 has 16 divisors (see below), whose sum is σ = 2148392134560. Its totient is φ = 1898839480320.

The previous prime is 2021212029983. The next prime is 2021212030063. The reversal of 2021212030031 is 1300302121202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021212030031 is a prime.

It is a super-2 number, since 2×2021212030031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021212029991 and 2021212030009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021212030231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6720761 + ... + 7015058.

It is an arithmetic number, because the mean of its divisors is an integer number (134274508410).

Almost surely, 2^{2021212030031} is an apocalyptic number.

2021212030031 is a deficient number, since it is larger than the sum of its proper divisors (127180104529).

2021212030031 is a wasteful number, since it uses less digits than its factorization.

2021212030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735994.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2021212030031 its reverse (1300302121202), we get a palindrome (3321514151233).

The spelling of 2021212030031 in words is "two trillion, twenty-one billion, two hundred twelve million, thirty thousand, thirty-one".