4021440023122 has 4 divisors (see below), whose sum is σ = 6032160034686. Its totient is φ = 2010720011560.

The previous prime is 4021440023087. The next prime is 4021440023173. The reversal of 4021440023122 is 2213200441204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3931650499921 + 89789523201 = 1982839^2 + 299649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005360005779 + ... + 1005360005782.

Almost surely, 2^{4021440023122} is an apocalyptic number.

4021440023122 is a deficient number, since it is larger than the sum of its proper divisors (2010720011564).

4021440023122 is a wasteful number, since it uses less digits than its factorization.

4021440023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010720011563.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4021440023122 its reverse (2213200441204), we get a palindrome (6234640464326).

The spelling of 4021440023122 in words is "four trillion, twenty-one billion, four hundred forty million, twenty-three thousand, one hundred twenty-two".