201022100220 has 24 divisors (see below), whose sum is σ = 562861880784. Its totient is φ = 53605893376.

The previous prime is 201022100197. The next prime is 201022100233. The reversal of 201022100220 is 22001220102.

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 = 201022100196 and 201022100205.

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, 1675184109 + ... + 1675184228.

It is an arithmetic number, because the mean of its divisors is an integer number (23452578366).

Almost surely, 2^201022100220 is an apocalyptic number.

201022100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201022100220 is an abundant number, since it is smaller than the sum of its proper divisors (361839780564).

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

201022100220 is a wasteful number, since it uses less digits than its factorization.

201022100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350368349 (or 3350368347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201022100220 its reverse (22001220102), we get a palindrome (223023320322).

The spelling of 201022100220 in words is "two hundred one billion, twenty-two million, one hundred thousand, two hundred twenty".