2100000222012 has 144 divisors (see below), whose sum is σ = 6219719557632. Its totient is φ = 545319774720.

The previous prime is 2100000221983. The next prime is 2100000222037. The reversal of 2100000222012 is 2102220000012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27599773 + ... + 27675755.

It is an arithmetic number, because the mean of its divisors is an integer number (43192496928).

Almost surely, 2^{2100000222012} is an apocalyptic number.

2100000222012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100000222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3109859778816).

2100000222012 is an abundant number, since it is smaller than the sum of its proper divisors (4119719335620).

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

2100000222012 is a wasteful number, since it uses less digits than its factorization.

2100000222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80288 (or 80279 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2100000222012 its reverse (2102220000012), we get a palindrome (4202220222024).

The spelling of 2100000222012 in words is "two trillion, one hundred billion, two hundred twenty-two thousand, twelve".