1222121102051 has 2 divisors, whose sum is σ = 1222121102052. Its totient is φ = 1222121102050.

The previous prime is 1222121101987. The next prime is 1222121102053. The reversal of 1222121102051 is 1502011212221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222121102051 - 2⁶ = 1222121101987 is a prime.

Together with 1222121102053, 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 (1222121102053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060551025 + 611060551026.

It is an arithmetic number, because the mean of its divisors is an integer number (611060551026).

Almost surely, 2^{1222121102051} is an apocalyptic number.

1222121102051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222121102051 is an equidigital number, since it uses as much as digits as its factorization.

1222121102051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1222121102051 its reverse (1502011212221), we get a palindrome (2724132314272).

The spelling of 1222121102051 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, fifty-one".