21102022002020 has 96 divisors (see below), whose sum is σ = 45590474160000. Its totient is φ = 8202211297280.

The previous prime is 21102022001941. The next prime is 21102022002029. The reversal of 21102022002020 is 2020022020112.

It is a junction number, because it is equal to n+sod(n) for n = 21102022001986 and 21102022002004.

It is not an unprimeable number, because it can be changed into a prime (21102022002029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24143606 + ... + 25002354.

It is an arithmetic number, because the mean of its divisors is an integer number (474900772500).

Almost surely, 2^{21102022002020} is an apocalyptic number.

21102022002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21102022002020 is an abundant number, since it is smaller than the sum of its proper divisors (24488452157980).

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

21102022002020 is a wasteful number, since it uses less digits than its factorization.

21102022002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859085 (or 859083 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21102022002020 its reverse (2020022020112), we get a palindrome (23122044022132).

The spelling of 21102022002020 in words is "twenty-one trillion, one hundred two billion, twenty-two million, two thousand, twenty".