120211022011021 has 4 divisors (see below), whose sum is σ = 123006627174112. Its totient is φ = 117415416847932.

The previous prime is 120211022010917. The next prime is 120211022011049. The reversal of 120211022011021 is 120110220112021.

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 120211022011021 - 2¹⁵ = 120211021978253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120211022010986 and 120211022011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211022011621) 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, 1397802581481 + ... + 1397802581566.

It is an arithmetic number, because the mean of its divisors is an integer number (30751656793528).

Almost surely, 2^{120211022011021} is an apocalyptic number.

It is an amenable number.

120211022011021 is a deficient number, since it is larger than the sum of its proper divisors (2795605163091).

120211022011021 is an equidigital number, since it uses as much as digits as its factorization.

120211022011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795605163090.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120211022011021 its reverse (120110220112021), we get a palindrome (240321242123042).

The spelling of 120211022011021 in words is "one hundred twenty trillion, two hundred eleven billion, twenty-two million, eleven thousand, twenty-one".