2201010001020 has 72 divisors (see below), whose sum is σ = 6676517951376. Its totient is φ = 586925367552.

The previous prime is 2201010001013. The next prime is 2201010001051. The reversal of 2201010001020 is 201000101022.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2201010000993 and 2201010001011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18746619 + ... + 18863661.

Almost surely, 2^{2201010001020} is an apocalyptic number.

2201010001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201010001020 is an abundant number, since it is smaller than the sum of its proper divisors (4475507950356).

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

2201010001020 is a wasteful number, since it uses less digits than its factorization.

2201010001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221531 (or 221526 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2201010001020 its reverse (201000101022), we get a palindrome (2402010102042).

The spelling of 2201010001020 in words is "two trillion, two hundred one billion, ten million, one thousand, twenty".