20121122212022 has 16 divisors (see below), whose sum is σ = 33296115932352. Its totient is φ = 9060167599680.

The previous prime is 20121122212021. The next prime is 20121122212027. The reversal of 20121122212022 is 22021222112102.

It is a super-2 number, since 2×20121122212022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121122211985 and 20121122212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121122212021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437673518 + ... + 9437675649.

It is an arithmetic number, because the mean of its divisors is an integer number (2081007245772).

Almost surely, 2^{20121122212022} is an apocalyptic number.

20121122212022 is a deficient number, since it is larger than the sum of its proper divisors (13174993720330).

20121122212022 is a wasteful number, since it uses less digits than its factorization.

20121122212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875349223.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20121122212022 its reverse (22021222112102), we get a palindrome (42142344324124).

The spelling of 20121122212022 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twelve thousand, twenty-two".