2220212112100 has 36 divisors (see below), whose sum is σ = 4842823332004. Its totient is φ = 883483361280.

The previous prime is 2220212112071. The next prime is 2220212112103. The reversal of 2220212112100 is 12112120222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 257680094884 + 1962532017216 = 507622^2 + 1400904^2 .

It is not an unprimeable number, because it can be changed into a prime (2220212112103) 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, 57499149 + ... + 57537748.

Almost surely, 2^{2220212112100} is an apocalyptic number.

2220212112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220212112100 is an abundant number, since it is smaller than the sum of its proper divisors (2622611219904).

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

2220212112100 is a wasteful number, since it uses less digits than its factorization.

2220212112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115037104 (or 115037097 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2220212112100 its reverse (12112120222), we get a palindrome (2232324232322).

The spelling of 2220212112100 in words is "two trillion, two hundred twenty billion, two hundred twelve million, one hundred twelve thousand, one hundred".