2021222112522 has 32 divisors (see below), whose sum is σ = 4128099085440. Its totient is φ = 659522809920.

The previous prime is 2021222112521. The next prime is 2021222112523. The reversal of 2021222112522 is 2252112221202.

It is an interprime number because it is at equal distance from previous prime (2021222112521) and next prime (2021222112523).

It is a junction number, because it is equal to n+sod(n) for n = 2021222112492 and 2021222112501.

It is not an unprimeable number, because it can be changed into a prime (2021222112521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7099629 + ... + 7378832.

It is an arithmetic number, because the mean of its divisors is an integer number (129003096420).

Almost surely, 2^{2021222112522} is an apocalyptic number.

2021222112522 is an abundant number, since it is smaller than the sum of its proper divisors (2106876972918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021222112522 is a wasteful number, since it uses less digits than its factorization.

2021222112522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14478958.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 2021222112522 its reverse (2252112221202), we get a palindrome (4273334333724).

The spelling of 2021222112522 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, five hundred twenty-two".