1200220002131 has 2 divisors, whose sum is σ = 1200220002132. Its totient is φ = 1200220002130.

The previous prime is 1200220002097. The next prime is 1200220002133. The reversal of 1200220002131 is 1312000220021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200220002131 is a prime.

It is a super-2 number, since 2×1200220002131² (a number of 25 digits) contains 22 as substring.

Together with 1200220002133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1200220002133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110001065 + 600110001066.

It is an arithmetic number, because the mean of its divisors is an integer number (600110001066).

Almost surely, 2^{1200220002131} is an apocalyptic number.

1200220002131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200220002131 is an equidigital number, since it uses as much as digits as its factorization.

1200220002131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1200220002131 its reverse (1312000220021), we get a palindrome (2512220222152).

The spelling of 1200220002131 in words is "one trillion, two hundred billion, two hundred twenty million, two thousand, one hundred thirty-one".