4234212020021 has 8 divisors (see below), whose sum is σ = 4236580761504. Its totient is φ = 4231843580880.

The previous prime is 4234212019991. The next prime is 4234212020029. The reversal of 4234212020021 is 1200202124324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4234212020021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234212020029) 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, 31604786 + ... + 31738476.

It is an arithmetic number, because the mean of its divisors is an integer number (529572595188).

Almost surely, 2^{4234212020021} is an apocalyptic number.

It is an amenable number.

4234212020021 is a deficient number, since it is larger than the sum of its proper divisors (2368741483).

4234212020021 is a wasteful number, since it uses less digits than its factorization.

4234212020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151171.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 4234212020021 its reverse (1200202124324), we get a palindrome (5434414144345).

It can be divided in two parts, 423421 and 2020021, that added together give a palindrome (2443442).

The spelling of 4234212020021 in words is "four trillion, two hundred thirty-four billion, two hundred twelve million, twenty thousand, twenty-one".