2123202012 has 48 divisors (see below), whose sum is σ = 5275966752. Its totient is φ = 662241280.

The previous prime is 2123201981. The next prime is 2123202023. The reversal of 2123202012 is 2102023212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2123201982 and 2123202000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5212 + ... + 65372.

It is an arithmetic number, because the mean of its divisors is an integer number (109915974).

Almost surely, 2^2123202012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2637983376).

2123202012 is an abundant number, since it is smaller than the sum of its proper divisors (3152764740).

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

2123202012 is a wasteful number, since it uses less digits than its factorization.

2123202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60358 (or 60356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2123202012 is about 46078.2162415170. The cubic root of 2123202012 is about 1285.2780943131.

Adding to 2123202012 its reverse (2102023212), we get a palindrome (4225225224).

The spelling of 2123202012 in words is "two billion, one hundred twenty-three million, two hundred two thousand, twelve".