2121232102 has 64 divisors (see below), whose sum is σ = 3670437888. Its totient is φ = 910656000.

The previous prime is 2121232051. The next prime is 2121232177. The reversal of 2121232102 is 2012321212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6820527 + ... + 6820837.

It is an arithmetic number, because the mean of its divisors is an integer number (57350592).

Almost surely, 2^2121232102 is an apocalyptic number.

2121232102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121232102 is a deficient number, since it is larger than the sum of its proper divisors (1549205786).

2121232102 is a wasteful number, since it uses less digits than its factorization.

2121232102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2121232102 is about 46056.8355621617. The cubic root of 2121232102 is about 1284.8804770055.

Adding to 2121232102 its reverse (2012321212), we get a palindrome (4133553314).

The spelling of 2121232102 in words is "two billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred two".