2202221121901 has 2 divisors, whose sum is σ = 2202221121902. Its totient is φ = 2202221121900.

The previous prime is 2202221121857. The next prime is 2202221121911. The reversal of 2202221121901 is 1091211222022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1770565551876 + 431655570025 = 1330626^2 + 657005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202221121901 - 2¹⁷ = 2202220990829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202221121911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101110560950 + 1101110560951.

It is an arithmetic number, because the mean of its divisors is an integer number (1101110560951).

Almost surely, 2^{2202221121901} is an apocalyptic number.

It is an amenable number.

2202221121901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202221121901 is an equidigital number, since it uses as much as digits as its factorization.

2202221121901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 2202221121901 its reverse (1091211222022), we get a palindrome (3293432343923).

It can be divided in two parts, 2202221121 and 901, that added together give a palindrome (2202222022).

The spelling of 2202221121901 in words is "two trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, nine hundred one".