201222021001020 has 24 divisors (see below), whose sum is σ = 563421658803024. Its totient is φ = 53659205600256.

The previous prime is 201222021001003. The next prime is 201222021001091. The reversal of 201222021001020 is 20100120222102.

201222021001020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 1676850174949 + ... + 1676850175068.

It is an arithmetic number, because the mean of its divisors is an integer number (23475902450126).

Almost surely, 2^{201222021001020} is an apocalyptic number.

201222021001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222021001020 is an abundant number, since it is smaller than the sum of its proper divisors (362199637802004).

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

201222021001020 is a wasteful number, since it uses less digits than its factorization.

201222021001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353700350029 (or 3353700350027 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201222021001020 its reverse (20100120222102), we get a palindrome (221322141223122).

The spelling of 201222021001020 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, one thousand, twenty".