20522101201 has 4 divisors (see below), whose sum is σ = 23453829952. Its totient is φ = 17590372452.

The previous prime is 20522101151. The next prime is 20522101211. The reversal of 20522101201 is 10210122502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10210122502 = 2 ⋅5105061251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20522101201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20522101211) 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, 1465864365 + ... + 1465864378.

It is an arithmetic number, because the mean of its divisors is an integer number (5863457488).

Almost surely, 2^20522101201 is an apocalyptic number.

It is an amenable number.

20522101201 is a deficient number, since it is larger than the sum of its proper divisors (2931728751).

20522101201 is an equidigital number, since it uses as much as digits as its factorization.

20522101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931728750.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 20522101201 its reverse (10210122502), we get a palindrome (30732223703).

The spelling of 20522101201 in words is "twenty billion, five hundred twenty-two million, one hundred one thousand, two hundred one".