1212122010001 has 8 divisors (see below), whose sum is σ = 1395856972224. Its totient is φ = 1031030716560.

The previous prime is 1212122009977. The next prime is 1212122010007. The reversal of 1212122010001 is 1000102212121.

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 1212122010001 - 2³³ = 1203532075409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212122010007) 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, 660916210 + ... + 660918043.

It is an arithmetic number, because the mean of its divisors is an integer number (174482121528).

Almost surely, 2^{1212122010001} is an apocalyptic number.

It is an amenable number.

1212122010001 is a deficient number, since it is larger than the sum of its proper divisors (183734962223).

1212122010001 is a wasteful number, since it uses less digits than its factorization.

1212122010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321834391.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212122010001 its reverse (1000102212121), we get a palindrome (2212224222122).

The spelling of 1212122010001 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, ten thousand, one".