1212011123101 has 8 divisors (see below), whose sum is σ = 1264844813760. Its totient is φ = 1159188895392.

The previous prime is 1212011123053. The next prime is 1212011123117. The reversal of 1212011123101 is 1013211102121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212011123101 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 (1212011123501) 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, 2649315 + ... + 3072928.

It is an arithmetic number, because the mean of its divisors is an integer number (158105601720).

Almost surely, 2^{1212011123101} is an apocalyptic number.

It is an amenable number.

1212011123101 is a deficient number, since it is larger than the sum of its proper divisors (52833690659).

1212011123101 is an equidigital number, since it uses as much as digits as its factorization.

1212011123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731475.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1212011123101 its reverse (1013211102121), we get a palindrome (2225222225222).

The spelling of 1212011123101 in words is "one trillion, two hundred twelve billion, eleven million, one hundred twenty-three thousand, one hundred one".