120011012021 has 4 divisors (see below), whose sum is σ = 120058281600. Its totient is φ = 119963742444.

The previous prime is 120011011963. The next prime is 120011012029. The reversal of 120011012021 is 120210110021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120011012021 - 2³⁴ = 102831142837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011011993 and 120011012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011012029) 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, 23630981 + ... + 23636058.

It is an arithmetic number, because the mean of its divisors is an integer number (30014570400).

Almost surely, 2^120011012021 is an apocalyptic number.

It is an amenable number.

120011012021 is a deficient number, since it is larger than the sum of its proper divisors (47269579).

120011012021 is an equidigital number, since it uses as much as digits as its factorization.

120011012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47269578.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120011012021 its reverse (120210110021), we get a palindrome (240221122042).

The spelling of 120011012021 in words is "one hundred twenty billion, eleven million, twelve thousand, twenty-one".