2021213223012 has 24 divisors (see below), whose sum is σ = 4726350299776. Its totient is φ = 672282582048.

The previous prime is 2021213222933. The next prime is 2021213223013. The reversal of 2021213223012 is 2103223121202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021213223012.

It is not an unprimeable number, because it can be changed into a prime (2021213223013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181889083 + ... + 181900194.

Almost surely, 2^{2021213223012} is an apocalyptic number.

It is an amenable number.

2021213223012 is an abundant number, since it is smaller than the sum of its proper divisors (2705137076764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021213223012 is a wasteful number, since it uses less digits than its factorization.

2021213223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363789747 (or 363789745 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2021213223012 its reverse (2103223121202), we get a palindrome (4124436344214).

The spelling of 2021213223012 in words is "two trillion, twenty-one billion, two hundred thirteen million, two hundred twenty-three thousand, twelve".