22102001101020 has 48 divisors (see below), whose sum is σ = 61885848155040. Its totient is φ = 5893843620096.

The previous prime is 22102001101009. The next prime is 22102001101021. The reversal of 22102001101020 is 2010110020122.

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 = 22102001100987 and 22102001101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102001101021) 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, 18925194 + ... + 20059086.

It is an arithmetic number, because the mean of its divisors is an integer number (1289288503230).

Almost surely, 2^{22102001101020} is an apocalyptic number.

22102001101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102001101020 is an abundant number, since it is smaller than the sum of its proper divisors (39783847054020).

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

22102001101020 is a wasteful number, since it uses less digits than its factorization.

22102001101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458774 (or 1458772 counting only the distinct ones).

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

Adding to 22102001101020 its reverse (2010110020122), we get a palindrome (24112111121142).

The spelling of 22102001101020 in words is "twenty-two trillion, one hundred two billion, one million, one hundred one thousand, twenty".