20202211211201 has 4 divisors (see below), whose sum is σ = 20202249910212. Its totient is φ = 20202172512192.

The previous prime is 20202211211177. The next prime is 20202211211219. The reversal of 20202211211201 is 10211211220202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3728548593025 + 16473662618176 = 1930945^2 + 4058776^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202211211201 - 2⁴² = 15804164700097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20202211211201.

It is not an unprimeable number, because it can be changed into a prime (20202211211101) 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, 18555596 + ... + 19614141.

It is an arithmetic number, because the mean of its divisors is an integer number (5050562477553).

Almost surely, 2^{20202211211201} is an apocalyptic number.

It is an amenable number.

20202211211201 is a deficient number, since it is larger than the sum of its proper divisors (38699011).

20202211211201 is an equidigital number, since it uses as much as digits as its factorization.

20202211211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38699010.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20202211211201 its reverse (10211211220202), we get a palindrome (30413422431403).

Subtracting from 20202211211201 its reverse (10211211220202), we obtain a palindrome (9990999990999).

The spelling of 20202211211201 in words is "twenty trillion, two hundred two billion, two hundred eleven million, two hundred eleven thousand, two hundred one".