120001022211021 has 16 divisors (see below), whose sum is σ = 182859022300800. Its totient is φ = 68571892021248.

The previous prime is 120001022211019. The next prime is 120001022211071. The reversal of 120001022211021 is 120112220100021.

It is not a de Polignac number, because 120001022211021 - 2¹ = 120001022211019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001022211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7971145 + ... + 17422433.

It is an arithmetic number, because the mean of its divisors is an integer number (11428688893800).

Almost surely, 2^{120001022211021} is an apocalyptic number.

It is an amenable number.

120001022211021 is a deficient number, since it is larger than the sum of its proper divisors (62858000089779).

120001022211021 is an equidigital number, since it uses as much as digits as its factorization.

120001022211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055908.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120001022211021 its reverse (120112220100021), we get a palindrome (240113242311042).

The spelling of 120001022211021 in words is "one hundred twenty trillion, one billion, twenty-two million, two hundred eleven thousand, twenty-one".