1230121022011 has 8 divisors (see below), whose sum is σ = 1407306433280. Its totient is φ = 1053299069928.

The previous prime is 1230121022003. The next prime is 1230121022017. The reversal of 1230121022011 is 1102201210321.

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

It is not a de Polignac number, because 1230121022011 - 2³ = 1230121022003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230121022017) 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, 90857541 + ... + 90871078.

It is an arithmetic number, because the mean of its divisors is an integer number (175913304160).

Almost surely, 2^{1230121022011} is an apocalyptic number.

1230121022011 is a deficient number, since it is larger than the sum of its proper divisors (177185411269).

1230121022011 is an equidigital number, since it uses as much as digits as its factorization.

1230121022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181729593.

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

Adding to 1230121022011 its reverse (1102201210321), we get a palindrome (2332322232332).

The spelling of 1230121022011 in words is "one trillion, two hundred thirty billion, one hundred twenty-one million, twenty-two thousand, eleven".