120001102211021 has 2 divisors, whose sum is σ = 120001102211022. Its totient is φ = 120001102211020.

The previous prime is 120001102210919. The next prime is 120001102211027. The reversal of 120001102211021 is 120112201100021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73605864136996 + 46395238074025 = 8579386^2 + 6811405^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001102211021 - 2³⁸ = 119726224304077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120001102210987 and 120001102211005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120001102211027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000551105510 + 60000551105511.

It is an arithmetic number, because the mean of its divisors is an integer number (60000551105511).

Almost surely, 2^{120001102211021} is an apocalyptic number.

It is an amenable number.

120001102211021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001102211021 is an equidigital number, since it uses as much as digits as its factorization.

120001102211021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120001102211021 its reverse (120112201100021), we get a palindrome (240113303311042).

The spelling of 120001102211021 in words is "one hundred twenty trillion, one billion, one hundred two million, two hundred eleven thousand, twenty-one".