2021222112025 has 12 divisors (see below), whose sum is σ = 2507039267392. Its totient is φ = 1616510690640.

The previous prime is 2021222111977. The next prime is 2021222112031. The reversal of 2021222112025 is 5202112221202.

It is not a de Polignac number, because 2021222112025 - 2²¹ = 2021220014873 is a prime.

It is a super-2 number, since 2×2021222112025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021222111987 and 2021222112005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11586669 + ... + 11759818.

Almost surely, 2^{2021222112025} is an apocalyptic number.

2021222112025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021222112025 is a deficient number, since it is larger than the sum of its proper divisors (485817155367).

2021222112025 is a wasteful number, since it uses less digits than its factorization.

2021222112025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23349960 (or 23349955 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 2021222112025 its reverse (5202112221202), we get a palindrome (7223334333227).

The spelling of 2021222112025 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, twenty-five".