1121212203619 has 2 divisors, whose sum is σ = 1121212203620. Its totient is φ = 1121212203618.

The previous prime is 1121212203613. The next prime is 1121212203653. The reversal of 1121212203619 is 9163022121211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121212203619 - 2³ = 1121212203611 is a prime.

It is a super-2 number, since 2×1121212203619² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121212203611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560606101809 + 560606101810.

It is an arithmetic number, because the mean of its divisors is an integer number (560606101810).

Almost surely, 2^{1121212203619} is an apocalyptic number.

1121212203619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121212203619 is an equidigital number, since it uses as much as digits as its factorization.

1121212203619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 1121212203619 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred three thousand, six hundred nineteen".