201210122110020 has 48 divisors (see below), whose sum is σ = 564281192001408. Its totient is φ = 53570999220480.

The previous prime is 201210122109973. The next prime is 201210122110061. The reversal of 201210122110020 is 20011221012102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657253769 + ... + 2657329488.

It is an arithmetic number, because the mean of its divisors is an integer number (11755858166696).

Almost surely, 2^{201210122110020} is an apocalyptic number.

201210122110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210122110020 is an abundant number, since it is smaller than the sum of its proper divisors (363071069891388).

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

201210122110020 is a wasteful number, since it uses less digits than its factorization.

201210122110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314583900 (or 5314583898 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201210122110020 its reverse (20011221012102), we get a palindrome (221221343122122).

The spelling of 201210122110020 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-two million, one hundred ten thousand, twenty".