2102321200122 has 48 divisors (see below), whose sum is σ = 5351363061408. Its totient is φ = 588061873440.

The previous prime is 2102321200097. The next prime is 2102321200129. The reversal of 2102321200122 is 2210021232012.

2102321200122 is a `hidden beast` number, since 21 + 0 + 2 + 321 + 200 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2102321200095 and 2102321200104.

It is not an unprimeable number, because it can be changed into a prime (2102321200129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408373728 + ... + 408378875.

It is an arithmetic number, because the mean of its divisors is an integer number (111486730446).

Almost surely, 2^{2102321200122} is an apocalyptic number.

2102321200122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102321200122 is an abundant number, since it is smaller than the sum of its proper divisors (3249041861286).

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

2102321200122 is a wasteful number, since it uses less digits than its factorization.

2102321200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816752635 (or 816752632 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2102321200122 its reverse (2210021232012), we get a palindrome (4312342432134).

The spelling of 2102321200122 in words is "two trillion, one hundred two billion, three hundred twenty-one million, two hundred thousand, one hundred twenty-two".