4021221011234 has 32 divisors (see below), whose sum is σ = 7236501811200. Its totient is φ = 1639519920720.

The previous prime is 4021221011153. The next prime is 4021221011267. The reversal of 4021221011234 is 4321101221204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78495464 + ... + 78546675.

It is an arithmetic number, because the mean of its divisors is an integer number (226140681600).

Almost surely, 2^{4021221011234} is an apocalyptic number.

4021221011234 is a deficient number, since it is larger than the sum of its proper divisors (3215280799966).

4021221011234 is a wasteful number, since it uses less digits than its factorization.

4021221011234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157042238.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4021221011234 its reverse (4321101221204), we get a palindrome (8342322232438).

The spelling of 4021221011234 in words is "four trillion, twenty-one billion, two hundred twenty-one million, eleven thousand, two hundred thirty-four".