120011021211001 has 12 divisors (see below), whose sum is σ = 124055877766500. Its totient is φ = 116094132729120.

The previous prime is 120011021210893. The next prime is 120011021211071. The reversal of 120011021211001 is 100112120110021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82070644711225 + 37940376499776 = 9059285^2 + 6159576^2 .

It is not a de Polignac number, because 120011021211001 - 2³⁹ = 119461265397113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120011021211071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22046566 + ... + 26945743.

It is an arithmetic number, because the mean of its divisors is an integer number (10337989813875).

Almost surely, 2^{120011021211001} is an apocalyptic number.

It is an amenable number.

120011021211001 is a deficient number, since it is larger than the sum of its proper divisors (4044856555499).

120011021211001 is an equidigital number, since it uses as much as digits as its factorization.

120011021211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48994920 (or 48994889 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120011021211001 its reverse (100112120110021), we get a palindrome (220123141321022).

The spelling of 120011021211001 in words is "one hundred twenty trillion, eleven billion, twenty-one million, two hundred eleven thousand, one".