1122123201 has 8 divisors (see below), whose sum is σ = 1501489824. Its totient is φ = 745419360.

The previous prime is 1122123181. The next prime is 1122123209. The reversal of 1122123201 is 1023212211.

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

It is not a de Polignac number, because 1122123201 - 2¹¹ = 1122121153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122123209) 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, 664711 + ... + 666396.

It is an arithmetic number, because the mean of its divisors is an integer number (187686228).

Almost surely, 2^1122123201 is an apocalyptic number.

It is an amenable number.

1122123201 is a deficient number, since it is larger than the sum of its proper divisors (379366623).

1122123201 is a wasteful number, since it uses less digits than its factorization.

1122123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331391.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1122123201 is about 33498.1074241516. The cubic root of 1122123201 is about 1039.1546387886.

Adding to 1122123201 its reverse (1023212211), we get a palindrome (2145335412).

The spelling of 1122123201 in words is "one billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred one".