1212001120101 has 16 divisors (see below), whose sum is σ = 1616681836544. Its totient is φ = 807660666864.

The previous prime is 1212001120067. The next prime is 1212001120111. The reversal of 1212001120101 is 1010211002121.

It is not a de Polignac number, because 1212001120101 - 2²⁶ = 1211934011237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212001120111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129718236 + ... + 129727578.

It is an arithmetic number, because the mean of its divisors is an integer number (101042614784).

Almost surely, 2^{1212001120101} is an apocalyptic number.

It is an amenable number.

1212001120101 is a deficient number, since it is larger than the sum of its proper divisors (404680716443).

1212001120101 is an equidigital number, since it uses as much as digits as its factorization.

1212001120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22920.

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

Adding to 1212001120101 its reverse (1010211002121), we get a palindrome (2222212122222).

The spelling of 1212001120101 in words is "one trillion, two hundred twelve billion, one million, one hundred twenty thousand, one hundred one".