3121212102 has 16 divisors (see below), whose sum is σ = 6513834240. Its totient is φ = 995169032.

The previous prime is 3121212097. The next prime is 3121212103. The reversal of 3121212102 is 2012121213.

3121212102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121212103) 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, 11308602 + ... + 11308877.

It is an arithmetic number, because the mean of its divisors is an integer number (407114640).

Almost surely, 2^3121212102 is an apocalyptic number.

3121212102 is an abundant number, since it is smaller than the sum of its proper divisors (3392622138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121212102 is a wasteful number, since it uses less digits than its factorization.

3121212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22617507.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3121212102 is about 55867.8091748728. The cubic root of 3121212102 is about 1461.4179166219.

Adding to 3121212102 its reverse (2012121213), we get a palindrome (5133333315).

The spelling of 3121212102 in words is "three billion, one hundred twenty-one million, two hundred twelve thousand, one hundred two".