21022200010220 has 12 divisors (see below), whose sum is σ = 44146620021504. Its totient is φ = 8408880004080.

The previous prime is 21022200010213. The next prime is 21022200010249. The reversal of 21022200010220 is 2201000222012.

It is a junction number, because it is equal to n+sod(n) for n = 21022200010195 and 21022200010204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525555000236 + ... + 525555000275.

It is an arithmetic number, because the mean of its divisors is an integer number (3678885001792).

Almost surely, 2^{21022200010220} is an apocalyptic number.

21022200010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022200010220 is an abundant number, since it is smaller than the sum of its proper divisors (23124420011284).

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

21022200010220 is a wasteful number, since it uses less digits than its factorization.

21022200010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051110000520 (or 1051110000518 counting only the distinct ones).

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

Adding to 21022200010220 its reverse (2201000222012), we get a palindrome (23223200232232).

The spelling of 21022200010220 in words is "twenty-one trillion, twenty-two billion, two hundred million, ten thousand, two hundred twenty".