2221131021112 has 32 divisors (see below), whose sum is σ = 4222261165680. Its totient is φ = 1095198969600.

The previous prime is 2221131021097. The next prime is 2221131021119. The reversal of 2221131021112 is 2111201311222.

It is a super-3 number, since 3×2221131021112³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2221131021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221131021119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3967362 + ... + 4492462.

Almost surely, 2^{2221131021112} is an apocalyptic number.

It is an amenable number.

2221131021112 is a deficient number, since it is larger than the sum of its proper divisors (2001130144568).

2221131021112 is a wasteful number, since it uses less digits than its factorization.

2221131021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532423 (or 532419 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2221131021112 its reverse (2111201311222), we get a palindrome (4332332332334).

It can be divided in two parts, 222113 and 1021112, that added together give a square (1243225 = 1115²).

The spelling of 2221131021112 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, twenty-one thousand, one hundred twelve".