1121401250105 has 16 divisors (see below), whose sum is σ = 1374622570944. Its totient is φ = 878028985920.

The previous prime is 1121401250083. The next prime is 1121401250117. The reversal of 1121401250105 is 5010521041211.

It is a happy number.

It is not a de Polignac number, because 1121401250105 - 2¹⁶ = 1121401184569 is a prime.

It is a super-2 number, since 2×1121401250105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12582566 + ... + 12671375.

It is an arithmetic number, because the mean of its divisors is an integer number (85913910684).

Almost surely, 2^{1121401250105} is an apocalyptic number.

It is an amenable number.

1121401250105 is a deficient number, since it is larger than the sum of its proper divisors (253221320839).

1121401250105 is a wasteful number, since it uses less digits than its factorization.

1121401250105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25254136.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 1121401250105 its reverse (5010521041211), we get a palindrome (6131922291316).

The spelling of 1121401250105 in words is "one trillion, one hundred twenty-one billion, four hundred one million, two hundred fifty thousand, one hundred five".