3211099999999 has 4 divisors (see below), whose sum is σ = 3211115329240. Its totient is φ = 3211084670760.

The previous prime is 3211099999951. The next prime is 3211100000023. The reversal of 3211099999999 is 9999999901123.

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

It is a cyclic number.

It is not a de Polignac number, because 3211099999999 - 2³¹ = 3208952516351 is a prime.

It is a super-2 number, since 2×3211099999999² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

3211099999999 is a modest number, since divided by 9999999 gives 321109 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211099999799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7345992 + ... + 7770829.

It is an arithmetic number, because the mean of its divisors is an integer number (802778832310).

Almost surely, 2^{3211099999999} is an apocalyptic number.

3211099999999 is a deficient number, since it is larger than the sum of its proper divisors (15329241).

3211099999999 is a wasteful number, since it uses less digits than its factorization.

3211099999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15329240.

The product of its (nonzero) digits is 258280326, while the sum is 79.

The spelling of 3211099999999 in words is "three trillion, two hundred eleven billion, ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".