2123562213102 has 64 divisors (see below), whose sum is σ = 4839747687936. Its totient is φ = 614878978560.

The previous prime is 2123562213077. The next prime is 2123562213131. The reversal of 2123562213102 is 2013122653212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123562213102.

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, 712698 + ... + 2180610.

It is an arithmetic number, because the mean of its divisors is an integer number (75621057624).

Almost surely, 2^{2123562213102} is an apocalyptic number.

2123562213102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123562213102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419873843968).

2123562213102 is an abundant number, since it is smaller than the sum of its proper divisors (2716185474834).

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

2123562213102 is a wasteful number, since it uses less digits than its factorization.

2123562213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468905.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 2123562213102 its reverse (2013122653212), we get a palindrome (4136684866314).

The spelling of 2123562213102 in words is "two trillion, one hundred twenty-three billion, five hundred sixty-two million, two hundred thirteen thousand, one hundred two".