1210122001 has 8 divisors (see below), whose sum is σ = 1320388704. Its totient is φ = 1099897920.

The previous prime is 1210121993. The next prime is 1210122007. The reversal of 1210122001 is 1002210121.

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

It is not a de Polignac number, because 1210122001 - 2³ = 1210121993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210122007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90585 + ... + 103081.

It is an arithmetic number, because the mean of its divisors is an integer number (165048588).

Almost surely, 2^1210122001 is an apocalyptic number.

1210122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210122001 is a deficient number, since it is larger than the sum of its proper divisors (110266703).

1210122001 is a wasteful number, since it uses less digits than its factorization.

1210122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1210122001 is about 34786.8078587271. The cubic root of 1210122001 is about 1065.6380494855.

Adding to 1210122001 its reverse (1002210121), we get a palindrome (2212332122).

The spelling of 1210122001 in words is "one billion, two hundred ten million, one hundred twenty-two thousand, one".