2021102220112 has 20 divisors (see below), whose sum is σ = 3999202266816. Its totient is φ = 989050022240.

The previous prime is 2021102220107. The next prime is 2021102220139. The reversal of 2021102220112 is 2110222011202.

It is a happy number.

It is a super-3 number, since 3×2021102220112³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343817214 + ... + 1343818717.

Almost surely, 2^{2021102220112} is an apocalyptic number.

It is an amenable number.

2021102220112 is a deficient number, since it is larger than the sum of its proper divisors (1978100046704).

2021102220112 is a wasteful number, since it uses less digits than its factorization.

2021102220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687635986 (or 2687635980 counting only the distinct ones).

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

Adding to 2021102220112 its reverse (2110222011202), we get a palindrome (4131324231314).

The spelling of 2021102220112 in words is "two trillion, twenty-one billion, one hundred two million, two hundred twenty thousand, one hundred twelve".