2020221200101 has 4 divisors (see below), whose sum is σ = 2175622830892. Its totient is φ = 1864819569312.

The previous prime is 2020221200089. The next prime is 2020221200113. The reversal of 2020221200101 is 1010021220202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2020221200089) and next prime (2020221200113).

It can be written as a sum of positive squares in 2 ways, for example, as 103793508900 + 1916427691201 = 322170^2 + 1384351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020221200101 - 2⁷ = 2020221199973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 155401630777 = 2020221200101 / (2 + 0 + 2 + 0 + 2 + 2 + 1 + 2 + 0 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221200171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77700815376 + ... + 77700815401.

It is an arithmetic number, because the mean of its divisors is an integer number (543905707723).

Almost surely, 2^{2020221200101} is an apocalyptic number.

It is an amenable number.

2020221200101 is a deficient number, since it is larger than the sum of its proper divisors (155401630791).

2020221200101 is a wasteful number, since it uses less digits than its factorization.

2020221200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155401630790.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020221200101 its reverse (1010021220202), we get a palindrome (3030242420303).

The spelling of 2020221200101 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred thousand, one hundred one".