20021202301 has 4 divisors (see below), whose sum is σ = 20034982972. Its totient is φ = 20007421632.

The previous prime is 20021202293. The next prime is 20021202307. The reversal of 20021202301 is 10320212002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10320212002 = 2 ⋅5160106001.

It can be written as a sum of positive squares in 2 ways, for example, as 16524845401 + 3496356900 = 128549^2 + 59130^2 .

It is a cyclic number.

It is not a de Polignac number, because 20021202301 - 2³ = 20021202293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021202307) 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, 6888156 + ... + 6891061.

It is an arithmetic number, because the mean of its divisors is an integer number (5008745743).

Almost surely, 2^20021202301 is an apocalyptic number.

It is an amenable number.

20021202301 is a deficient number, since it is larger than the sum of its proper divisors (13780671).

20021202301 is a wasteful number, since it uses less digits than its factorization.

20021202301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13780670.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20021202301 its reverse (10320212002), we get a palindrome (30341414303).

The spelling of 20021202301 in words is "twenty billion, twenty-one million, two hundred two thousand, three hundred one".