1121210019999 has 32 divisors (see below), whose sum is σ = 1689343200000. Its totient is φ = 734744323872.

The previous prime is 1121210019983. The next prime is 1121210020079. The reversal of 1121210019999 is 9999100121211.

It is not a de Polignac number, because 1121210019999 - 2⁴ = 1121210019983 is a prime.

It is a super-2 number, since 2×1121210019999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121210019959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28187377 + ... + 28227125.

It is an arithmetic number, because the mean of its divisors is an integer number (52791975000).

Almost surely, 2^{1121210019999} is an apocalyptic number.

1121210019999 is a deficient number, since it is larger than the sum of its proper divisors (568133180001).

1121210019999 is a wasteful number, since it uses less digits than its factorization.

1121210019999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57524 (or 57518 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 45.

The spelling of 1121210019999 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, nineteen thousand, nine hundred ninety-nine".