2122101200000 has 96 divisors (see below), whose sum is σ = 5284192141620. Its totient is φ = 848840320000.

The previous prime is 2122101199957. The next prime is 2122101200003. The reversal of 2122101200000 is 21012212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 976937536 + 2121124262464 = 31256^2 + 1456408^2 .

It is not an unprimeable number, because it can be changed into a prime (2122101200003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2252627 + ... + 3052626.

Almost surely, 2^{2122101200000} is an apocalyptic number.

2122101200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122101200000 is an abundant number, since it is smaller than the sum of its proper divisors (3162090941620).

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

2122101200000 is an frugal number, since it uses more digits than its factorization.

2122101200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305292 (or 5305260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2122101200000 its reverse (21012212), we get a palindrome (2122122212212).

The spelling of 2122101200000 in words is "two trillion, one hundred twenty-two billion, one hundred one million, two hundred thousand".