20221120212132 has 48 divisors (see below), whose sum is σ = 53931026145920. Its totient is φ = 5776601605632.

The previous prime is 20221120212101. The next prime is 20221120212143. The reversal of 20221120212132 is 23121202112202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20221120212099 and 20221120212108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17377093 + ... + 18504204.

Almost surely, 2^{20221120212132} is an apocalyptic number.

It is an amenable number.

20221120212132 is an abundant number, since it is smaller than the sum of its proper divisors (33709905933788).

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

20221120212132 is a wasteful number, since it uses less digits than its factorization.

20221120212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35888020 (or 35888018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20221120212132 its reverse (23121202112202), we get a palindrome (43342322324334).

The spelling of 20221120212132 in words is "twenty trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twelve thousand, one hundred thirty-two".