20010201121020 has 48 divisors (see below), whose sum is σ = 61122068880768. Its totient is φ = 4850957847360.

The previous prime is 20010201120983. The next prime is 20010201121021. The reversal of 20010201121020 is 2012110201002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20010201120987 and 20010201121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010201121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15159242614 + ... + 15159243933.

It is an arithmetic number, because the mean of its divisors is an integer number (1273376435016).

Almost surely, 2^{20010201121020} is an apocalyptic number.

20010201121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010201121020 is an abundant number, since it is smaller than the sum of its proper divisors (41111867759748).

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

20010201121020 is a wasteful number, since it uses less digits than its factorization.

20010201121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30318486570 (or 30318486568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20010201121020 its reverse (2012110201002), we get a palindrome (22022311322022).

The spelling of 20010201121020 in words is "twenty trillion, ten billion, two hundred one million, one hundred twenty-one thousand, twenty".