2221201120212 has 30 divisors (see below), whose sum is σ = 5806658484858. Its totient is φ = 740400373296.

The previous prime is 2221201120207. The next prime is 2221201120213. The reversal of 2221201120212 is 2120211021222.

It is a happy number.

2221201120212 is a `hidden beast` number, since 222 + 120 + 112 + 0 + 212 = 666.

2221201120212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2093241814416 + 127959305796 = 1446804^2 + 357714^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221201120213) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3427779183 + ... + 3427779830.

Almost surely, 2^{2221201120212} is an apocalyptic number.

It is an amenable number.

2221201120212 is an abundant number, since it is smaller than the sum of its proper divisors (3585457364646).

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

2221201120212 is a wasteful number, since it uses less digits than its factorization.

2221201120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855559029 (or 6855559018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221201120212 its reverse (2120211021222), we get a palindrome (4341412141434).

The spelling of 2221201120212 in words is "two trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty thousand, two hundred twelve".