1121210019959 has 2 divisors, whose sum is σ = 1121210019960. Its totient is φ = 1121210019958.

The previous prime is 1121210019887. The next prime is 1121210019967. The reversal of 1121210019959 is 9599100121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121210019959 - 2³² = 1116915052663 is a prime.

It is a super-2 number, since 2×1121210019959² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121210016959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560605009979 + 560605009980.

It is an arithmetic number, because the mean of its divisors is an integer number (560605009980).

Almost surely, 2^{1121210019959} is an apocalyptic number.

1121210019959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121210019959 is an equidigital number, since it uses as much as digits as its factorization.

1121210019959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 41.

The spelling of 1121210019959 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, nineteen thousand, nine hundred fifty-nine".