1212230120101 has 128 divisors (see below), whose sum is σ = 1692421226496. Its totient is φ = 838076129280.

The previous prime is 1212230120099. The next prime is 1212230120119. The reversal of 1212230120101 is 1010210322121.

It is not a de Polignac number, because 1212230120101 - 2¹ = 1212230120099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212230123101) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 530051380 + ... + 530053666.

It is an arithmetic number, because the mean of its divisors is an integer number (13222040832).

Almost surely, 2^{1212230120101} is an apocalyptic number.

1212230120101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212230120101 is a deficient number, since it is larger than the sum of its proper divisors (480191106395).

1212230120101 is a wasteful number, since it uses less digits than its factorization.

1212230120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212230120101 its reverse (1010210322121), we get a palindrome (2222440442222).

It can be divided in two parts, 1212230 and 120101, that added together give a palindrome (1332331).

The spelling of 1212230120101 in words is "one trillion, two hundred twelve billion, two hundred thirty million, one hundred twenty thousand, one hundred one".