1222002020101 has 4 divisors (see below), whose sum is σ = 1222027187500. Its totient is φ = 1221976852704.

The previous prime is 1222002020077. The next prime is 1222002020119. The reversal of 1222002020101 is 1010202002221.

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 720172876900 + 501829143201 = 848630^2 + 708399^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222002020101 - 2¹⁵ = 1222001987333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002020801) 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, 12510726 + ... + 12608023.

It is an arithmetic number, because the mean of its divisors is an integer number (305506796875).

Almost surely, 2^{1222002020101} is an apocalyptic number.

It is an amenable number.

1222002020101 is a deficient number, since it is larger than the sum of its proper divisors (25167399).

1222002020101 is an equidigital number, since it uses as much as digits as its factorization.

1222002020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25167398.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1222002020101 its reverse (1010202002221), we get a palindrome (2232204022322).

The spelling of 1222002020101 in words is "one trillion, two hundred twenty-two billion, two million, twenty thousand, one hundred one".