1109724422401 has 16 divisors (see below), whose sum is σ = 1305252330624. Its totient is φ = 923701209984.

The previous prime is 1109724422399. The next prime is 1109724422461. The reversal of 1109724422401 is 1042244279011.

It is a happy number.

It is not a de Polignac number, because 1109724422401 - 2¹ = 1109724422399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109724422461) 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, 10603396 + ... + 10707541.

It is an arithmetic number, because the mean of its divisors is an integer number (81578270664).

Almost surely, 2^{1109724422401} is an apocalyptic number.

It is an amenable number.

1109724422401 is a deficient number, since it is larger than the sum of its proper divisors (195527908223).

1109724422401 is a wasteful number, since it uses less digits than its factorization.

1109724422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311160.

The product of its (nonzero) digits is 32256, while the sum is 37.

It can be divided in two parts, 1109724 and 422401, that added together give a triangular number (1532125 = T₁₇₅₀).

The spelling of 1109724422401 in words is "one trillion, one hundred nine billion, seven hundred twenty-four million, four hundred twenty-two thousand, four hundred one".