2112201100220 has 24 divisors (see below), whose sum is σ = 4443821265408. Its totient is φ = 843318734400.

The previous prime is 2112201100127. The next prime is 2112201100279. The reversal of 2112201100220 is 220011022112.

It is a super-2 number, since 2×2112201100220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112201100195 and 2112201100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97595516 + ... + 97617155.

It is an arithmetic number, because the mean of its divisors is an integer number (185159219392).

Almost surely, 2^{2112201100220} is an apocalyptic number.

2112201100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112201100220 is an abundant number, since it is smaller than the sum of its proper divisors (2331620165188).

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

2112201100220 is a wasteful number, since it uses less digits than its factorization.

2112201100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195213221 (or 195213219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2112201100220 its reverse (220011022112), we get a palindrome (2332212122332).

The spelling of 2112201100220 in words is "two trillion, one hundred twelve billion, two hundred one million, one hundred thousand, two hundred twenty".