120011010021211 has 4 divisors (see below), whose sum is σ = 120012215546800. Its totient is φ = 120009804495624.

The previous prime is 120011010021169. The next prime is 120011010021233. The reversal of 120011010021211 is 112120010110021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120011010021211 - 2¹⁷ = 120011009890139 is a prime.

It is a super-4 number, since 4×120011010021211⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011010021191 and 120011010021200.

It is not an unprimeable number, because it can be changed into a prime (120011010021311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602613456 + ... + 602812573.

It is an arithmetic number, because the mean of its divisors is an integer number (30003053886700).

Almost surely, 2^{120011010021211} is an apocalyptic number.

120011010021211 is a deficient number, since it is larger than the sum of its proper divisors (1205525589).

120011010021211 is an equidigital number, since it uses as much as digits as its factorization.

120011010021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205525588.

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

Adding to 120011010021211 its reverse (112120010110021), we get a palindrome (232131020131232).

The spelling of 120011010021211 in words is "one hundred twenty trillion, eleven billion, ten million, twenty-one thousand, two hundred eleven".