202012211222201 has 4 divisors (see below), whose sum is σ = 202021998182004. Its totient is φ = 202002424262400.

The previous prime is 202012211222189. The next prime is 202012211222281. The reversal of 202012211222201 is 102222112210202.

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 79380972160000 + 122631239062201 = 8909600^2 + 11073899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202012211222201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012211222281) 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, 4893448940 + ... + 4893490221.

It is an arithmetic number, because the mean of its divisors is an integer number (50505499545501).

Almost surely, 2^{202012211222201} is an apocalyptic number.

It is an amenable number.

202012211222201 is a deficient number, since it is larger than the sum of its proper divisors (9786959803).

202012211222201 is an equidigital number, since it uses as much as digits as its factorization.

202012211222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786959802.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202012211222201 its reverse (102222112210202), we get a palindrome (304234323432403).

The spelling of 202012211222201 in words is "two hundred two trillion, twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred one".