121012442119 has 16 divisors (see below), whose sum is σ = 130729104000. Its totient is φ = 111666198240.

The previous prime is 121012442107. The next prime is 121012442153. The reversal of 121012442119 is 911244210121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121012442119 - 2⁵ = 121012442087 is a prime.

It is a super-2 number, since 2×121012442119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012442189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372997 + ... + 617374.

It is an arithmetic number, because the mean of its divisors is an integer number (8170569000).

Almost surely, 2^121012442119 is an apocalyptic number.

121012442119 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

121012442119 is a deficient number, since it is larger than the sum of its proper divisors (9716661881).

121012442119 is a wasteful number, since it uses less digits than its factorization.

121012442119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990558.

The product of its (nonzero) digits is 1152, while the sum is 28.

It can be divided in two parts, 12101 and 2442119, that added together give a triangular number (2454220 = T₂₂₁₅).

The spelling of 121012442119 in words is "one hundred twenty-one billion, twelve million, four hundred forty-two thousand, one hundred nineteen".