1112120202021 has 24 divisors (see below), whose sum is σ = 1587207398304. Its totient is φ = 692474115840.

The previous prime is 1112120202013. The next prime is 1112120202043. The reversal of 1112120202021 is 1202020212111.

It is not a de Polignac number, because 1112120202021 - 2³ = 1112120202013 is a prime.

It is a super-2 number, since 2×1112120202021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112120202001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4782310 + ... + 5009463.

It is an arithmetic number, because the mean of its divisors is an integer number (66133641596).

Almost surely, 2^{1112120202021} is an apocalyptic number.

It is an amenable number.

1112120202021 is a deficient number, since it is larger than the sum of its proper divisors (475087196283).

1112120202021 is a wasteful number, since it uses less digits than its factorization.

1112120202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9791941 (or 9791924 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1112120202021 its reverse (1202020212111), we get a palindrome (2314140414132).

The spelling of 1112120202021 in words is "one trillion, one hundred twelve billion, one hundred twenty million, two hundred two thousand, twenty-one".