2021221110112 has 48 divisors (see below), whose sum is σ = 4004470068480. Its totient is φ = 1004232753792.

The previous prime is 2021221110067. The next prime is 2021221110131. The reversal of 2021221110112 is 2110111221202.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2940253 + ... + 3561955.

It is an arithmetic number, because the mean of its divisors is an integer number (83426459760).

Almost surely, 2^{2021221110112} is an apocalyptic number.

It is an amenable number.

2021221110112 is a deficient number, since it is larger than the sum of its proper divisors (1983248958368).

2021221110112 is a wasteful number, since it uses less digits than its factorization.

2021221110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622355 (or 622347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2021221110112 its reverse (2110111221202), we get a palindrome (4131332331314).

The spelling of 2021221110112 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred ten thousand, one hundred twelve".