1210122011001 has 16 divisors (see below), whose sum is σ = 1617713040384. Its totient is φ = 804641499024.

The previous prime is 1210122010997. The next prime is 1210122011011. The reversal of 1210122011001 is 1001102210121.

It is not a de Polignac number, because 1210122011001 - 2² = 1210122010997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210122011011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175450 + ... + 2674476.

It is an arithmetic number, because the mean of its divisors is an integer number (101107065024).

Almost surely, 2^{1210122011001} is an apocalyptic number.

It is an amenable number.

1210122011001 is a deficient number, since it is larger than the sum of its proper divisors (407591029383).

1210122011001 is a wasteful number, since it uses less digits than its factorization.

1210122011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501140.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210122011001 its reverse (1001102210121), we get a palindrome (2211224221122).

The spelling of 1210122011001 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, eleven thousand, one".