120021110021011 has 4 divisors (see below), whose sum is σ = 120021197140800. Its totient is φ = 120021022901224.

The previous prime is 120021110021003. The next prime is 120021110021017. The reversal of 120021110021011 is 110120011120021.

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 120021110021011 - 2³ = 120021110021003 is a prime.

It is a super-2 number, since 2×120021110021011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021110020982 and 120021110021000.

It is not an unprimeable number, because it can be changed into a prime (120021110021017) 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, 41459656 + ... + 44259973.

It is an arithmetic number, because the mean of its divisors is an integer number (30005299285200).

Almost surely, 2^{120021110021011} is an apocalyptic number.

120021110021011 is a deficient number, since it is larger than the sum of its proper divisors (87119789).

120021110021011 is an equidigital number, since it uses as much as digits as its factorization.

120021110021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87119788.

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

Adding to 120021110021011 its reverse (110120011120021), we get a palindrome (230141121141032).

The spelling of 120021110021011 in words is "one hundred twenty trillion, twenty-one billion, one hundred ten million, twenty-one thousand, eleven".