2222021022100 has 54 divisors (see below), whose sum is σ = 5299979261822. Its totient is φ = 808007640000.

The previous prime is 2222021022059. The next prime is 2222021022101. The reversal of 2222021022100 is 12201202222.

It can be written as a sum of positive squares in 3 ways, for example, as 476657683216 + 1745363338884 = 690404^2 + 1321122^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222021022101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 91806951 + ... + 91831150.

Almost surely, 2^{2222021022100} is an apocalyptic number.

2222021022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222021022100 is an abundant number, since it is smaller than the sum of its proper divisors (3077958239722).

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

2222021022100 is a wasteful number, since it uses less digits than its factorization.

2222021022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183638137 (or 183638119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2222021022100 its reverse (12201202222), we get a palindrome (2234222224322).

The spelling of 2222021022100 in words is "two trillion, two hundred twenty-two billion, twenty-one million, twenty-two thousand, one hundred".