201100210222220 has 24 divisors (see below), whose sum is σ = 422316864565344. Its totient is φ = 80438860641536.

The previous prime is 201100210222211. The next prime is 201100210222259. The reversal of 201100210222220 is 22222012001102.

It is a happy 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, 75117032 + ... + 77748111.

It is an arithmetic number, because the mean of its divisors is an integer number (17596536023556).

Almost surely, 2^{201100210222220} is an apocalyptic number.

201100210222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100210222220 is an abundant number, since it is smaller than the sum of its proper divisors (221216654343124).

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

201100210222220 is a wasteful number, since it uses less digits than its factorization.

201100210222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152930929 (or 152930927 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201100210222220 its reverse (22222012001102), we get a palindrome (223322222223322).

The spelling of 201100210222220 in words is "two hundred one trillion, one hundred billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty".