3211101121 has 4 divisors (see below), whose sum is σ = 3211910100. Its totient is φ = 3210292144.

The previous prime is 3211101109. The next prime is 3211101169. The reversal of 3211101121 is 1211011123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211011123 = 7 ⋅173001589.

It can be written as a sum of positive squares in 2 ways, for example, as 779526400 + 2431574721 = 27920^2 + 49311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3211101121 is a prime.

It is a super-2 number, since 2×3211101121² = 20622340818574913282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3211102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398506 + ... + 406483.

It is an arithmetic number, because the mean of its divisors is an integer number (802977525).

Almost surely, 2^3211101121 is an apocalyptic number.

It is an amenable number.

3211101121 is a deficient number, since it is larger than the sum of its proper divisors (808979).

3211101121 is an equidigital number, since it uses as much as digits as its factorization.

3211101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808978.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 3211101121 is about 56666.5785185589. The cubic root of 3211101121 is about 1475.3146693968.

Adding to 3211101121 its reverse (1211011123), we get a palindrome (4422112244).

The spelling of 3211101121 in words is "three billion, two hundred eleven million, one hundred one thousand, one hundred twenty-one".