1212122201001 has 8 divisors (see below), whose sum is σ = 1618286673504. Its totient is φ = 807019597920.

The previous prime is 1212122200987. The next prime is 1212122201029. The reversal of 1212122201001 is 1001022212121.

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

It is not a de Polignac number, because 1212122201001 - 2⁹ = 1212122200489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212122201041) 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, 265464691 + ... + 265469256.

It is an arithmetic number, because the mean of its divisors is an integer number (202285834188).

Almost surely, 2^{1212122201001} is an apocalyptic number.

It is an amenable number.

1212122201001 is a deficient number, since it is larger than the sum of its proper divisors (406164472503).

1212122201001 is an equidigital number, since it uses as much as digits as its factorization.

1212122201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530934711.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212122201001 its reverse (1001022212121), we get a palindrome (2213144413122).

The spelling of 1212122201001 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred one thousand, one".