20221001101020 has 24 divisors (see below), whose sum is σ = 56618803083024. Its totient is φ = 5392266960256.

The previous prime is 20221001101003. The next prime is 20221001101079. The reversal of 20221001101020 is 2010110012202.

It is a super-3 number, since 3×20221001101020³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20221001100987 and 20221001101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168508342449 + ... + 168508342568.

It is an arithmetic number, because the mean of its divisors is an integer number (2359116795126).

Almost surely, 2^{20221001101020} is an apocalyptic number.

20221001101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221001101020 is an abundant number, since it is smaller than the sum of its proper divisors (36397801982004).

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

20221001101020 is a wasteful number, since it uses less digits than its factorization.

20221001101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337016685029 (or 337016685027 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20221001101020 its reverse (2010110012202), we get a palindrome (22231111113222).

The spelling of 20221001101020 in words is "twenty trillion, two hundred twenty-one billion, one million, one hundred one thousand, twenty".