1220002202113 has 4 divisors (see below), whose sum is σ = 1221102295380. Its totient is φ = 1218902108848.

The previous prime is 1220002202051. The next prime is 1220002202119. The reversal of 1220002202113 is 3112022000221.

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 355535527824 + 864466674289 = 596268^2 + 929767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220002202113 - 2⁹ = 1220002201601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220002202119) 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, 550044970 + ... + 550047187.

It is an arithmetic number, because the mean of its divisors is an integer number (305275573845).

Almost surely, 2^{1220002202113} is an apocalyptic number.

It is an amenable number.

1220002202113 is a deficient number, since it is larger than the sum of its proper divisors (1100093267).

1220002202113 is a wasteful number, since it uses less digits than its factorization.

1220002202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100093266.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220002202113 its reverse (3112022000221), we get a palindrome (4332024202334).

The spelling of 1220002202113 in words is "one trillion, two hundred twenty billion, two million, two hundred two thousand, one hundred thirteen".