11100121121019 has 64 divisors (see below), whose sum is σ = 17123169761280. Its totient is φ = 6265091266560.

The previous prime is 11100121120981. The next prime is 11100121121057. The reversal of 11100121121019 is 91012112100111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11100121120981) and next prime (11100121121057).

It is not a de Polignac number, because 11100121121019 - 2¹¹ = 11100121118971 is a prime.

It is a super-2 number, since 2×11100121121019² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11100121120986 and 11100121121004.

It is not an unprimeable number, because it can be changed into a prime (11100121121059) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 834024537 + ... + 834037845.

It is an arithmetic number, because the mean of its divisors is an integer number (267549527520).

Almost surely, 2^{11100121121019} is an apocalyptic number.

11100121121019 is a deficient number, since it is larger than the sum of its proper divisors (6023048640261).

11100121121019 is a wasteful number, since it uses less digits than its factorization.

11100121121019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14620.

The product of its (nonzero) digits is 36, while the sum is 21.

The spelling of 11100121121019 in words is "eleven trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, nineteen".