3211112121 has 8 divisors (see below), whose sum is σ = 4893123264. Its totient is φ = 1834921200.

The previous prime is 3211112117. The next prime is 3211112129. The reversal of 3211112121 is 1212111123.

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

It is not a de Polignac number, because 3211112121 - 2² = 3211112117 is a prime.

It is a super-2 number, since 2×3211112121² = 20622482107266237282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3211112121.

It is not an unprimeable number, because it can be changed into a prime (3211112129) 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, 76455030 + ... + 76455071.

It is an arithmetic number, because the mean of its divisors is an integer number (611640408).

Almost surely, 2^3211112121 is an apocalyptic number.

It is an amenable number.

3211112121 is a deficient number, since it is larger than the sum of its proper divisors (1682011143).

3211112121 is a wasteful number, since it uses less digits than its factorization.

3211112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152910111.

The product of its digits is 24, while the sum is 15.

The square root of 3211112121 is about 56666.6755774503. The cubic root of 3211112121 is about 1475.3163540155.

Adding to 3211112121 its reverse (1212111123), we get a palindrome (4423223244).

The spelling of 3211112121 in words is "three billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-one".