1112121001 has 8 divisors (see below), whose sum is σ = 1197909504. Its totient is φ = 1029452160.

The previous prime is 1112120987. The next prime is 1112121071. The reversal of 1112121001 is 1001212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112121001 - 2¹³ = 1112112809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112121071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779176 + ... + 780601.

It is an arithmetic number, because the mean of its divisors is an integer number (149738688).

Almost surely, 2^1112121001 is an apocalyptic number.

It is an amenable number.

1112121001 is a deficient number, since it is larger than the sum of its proper divisors (85788503).

1112121001 is a wasteful number, since it uses less digits than its factorization.

1112121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559831.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1112121001 is about 33348.4782411432. The cubic root of 1112121001 is about 1036.0578698984.

Adding to 1112121001 its reverse (1001212111), we get a palindrome (2113333112).

The spelling of 1112121001 in words is "one billion, one hundred twelve million, one hundred twenty-one thousand, one".