3121440221001 has 8 divisors (see below), whose sum is σ = 4161952139904. Its totient is φ = 2080944224720.

The previous prime is 3121440220879. The next prime is 3121440221047. The reversal of 3121440221001 is 1001220441213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121440221001 - 2¹⁰ = 3121440219977 is a prime.

It is a super-3 number, since 3×3121440221001³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121440221201) 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, 3515466 + ... + 4312931.

It is an arithmetic number, because the mean of its divisors is an integer number (520244017488).

Almost surely, 2^{3121440221001} is an apocalyptic number.

It is an amenable number.

3121440221001 is a deficient number, since it is larger than the sum of its proper divisors (1040511918903).

3121440221001 is a wasteful number, since it uses less digits than its factorization.

3121440221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961311.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 3121440221001 its reverse (1001220441213), we get a palindrome (4122660662214).

The spelling of 3121440221001 in words is "three trillion, one hundred twenty-one billion, four hundred forty million, two hundred twenty-one thousand, one".