2220201222101 has 4 divisors (see below), whose sum is σ = 2220915345900. Its totient is φ = 2219487098304.

The previous prime is 2220201222097. The next prime is 2220201222131. The reversal of 2220201222101 is 1012221020222.

It is a happy number.

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 654634719025 + 1565566503076 = 809095^2 + 1251226^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220201222101 - 2² = 2220201222097 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 2220201222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220201222131) 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, 357057236 + ... + 357063453.

It is an arithmetic number, because the mean of its divisors is an integer number (555228836475).

Almost surely, 2^{2220201222101} is an apocalyptic number.

It is an amenable number.

2220201222101 is a deficient number, since it is larger than the sum of its proper divisors (714123799).

2220201222101 is an equidigital number, since it uses as much as digits as its factorization.

2220201222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714123798.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2220201222101 its reverse (1012221020222), we get a palindrome (3232422242323).

The spelling of 2220201222101 in words is "two trillion, two hundred twenty billion, two hundred one million, two hundred twenty-two thousand, one hundred one".