201012100220 has 48 divisors (see below), whose sum is σ = 424652584608. Its totient is φ = 79924592640.

The previous prime is 201012100193. The next prime is 201012100229. The reversal of 201012100220 is 22001210102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012100229) 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, 2875604 + ... + 2944676.

It is an arithmetic number, because the mean of its divisors is an integer number (8846928846).

Almost surely, 2^201012100220 is an apocalyptic number.

201012100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012100220 is an abundant number, since it is smaller than the sum of its proper divisors (223640484388).

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

201012100220 is a wasteful number, since it uses less digits than its factorization.

201012100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69950 (or 69948 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201012100220 its reverse (22001210102), we get a palindrome (223013310322).

The spelling of 201012100220 in words is "two hundred one billion, twelve million, one hundred thousand, two hundred twenty".