4031421221401 has 16 divisors (see below), whose sum is σ = 4665015431424. Its totient is φ = 3412507613184.

The previous prime is 4031421221329. The next prime is 4031421221417. The reversal of 4031421221401 is 1041221241304.

It is a cyclic number.

It is not a de Polignac number, because 4031421221401 - 2³⁹ = 3481665407513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4031421221441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10705525 + ... + 11075698.

It is an arithmetic number, because the mean of its divisors is an integer number (291563464464).

Almost surely, 2^{4031421221401} is an apocalyptic number.

It is an amenable number.

4031421221401 is a deficient number, since it is larger than the sum of its proper divisors (633594210023).

4031421221401 is a wasteful number, since it uses less digits than its factorization.

4031421221401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21781560.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 4031421221401 its reverse (1041221241304), we get a palindrome (5072642462705).

The spelling of 4031421221401 in words is "four trillion, thirty-one billion, four hundred twenty-one million, two hundred twenty-one thousand, four hundred one".