20120222202001 has 4 divisors (see below), whose sum is σ = 20769261627904. Its totient is φ = 19471182776100.

The previous prime is 20120222201993. The next prime is 20120222202061. The reversal of 20120222202001 is 10020222202102.

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.

It is a cyclic number.

It is not a de Polignac number, because 20120222202001 - 2³ = 20120222201993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120222202061) 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, 324519712905 + ... + 324519712966.

It is an arithmetic number, because the mean of its divisors is an integer number (5192315406976).

Almost surely, 2^{20120222202001} is an apocalyptic number.

It is an amenable number.

20120222202001 is a deficient number, since it is larger than the sum of its proper divisors (649039425903).

20120222202001 is an equidigital number, since it uses as much as digits as its factorization.

20120222202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649039425902.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20120222202001 its reverse (10020222202102), we get a palindrome (30140444404103).

The spelling of 20120222202001 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, two hundred two thousand, one".