4202021223012 has 24 divisors (see below), whose sum is σ = 9806082518176. Its totient is φ = 1400478550848.

The previous prime is 4202021223011. The next prime is 4202021223019. The reversal of 4202021223012 is 2103221202024.

It is a self number, because there is not a number n which added to its sum of digits gives 4202021223012.

It is not an unprimeable number, because it can be changed into a prime (4202021223011) 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, 24309058 + ... + 24481305.

Almost surely, 2^{4202021223012} is an apocalyptic number.

It is an amenable number.

4202021223012 is an abundant number, since it is smaller than the sum of its proper divisors (5604061295164).

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

4202021223012 is a wasteful number, since it uses less digits than its factorization.

4202021223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48797547 (or 48797545 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 4202021223012 its reverse (2103221202024), we get a palindrome (6305242425036).

The spelling of 4202021223012 in words is "four trillion, two hundred two billion, twenty-one million, two hundred twenty-three thousand, twelve".