120021010101121 has 4 divisors (see below), whose sum is σ = 127081069518852. Its totient is φ = 112960950683392.

The previous prime is 120021010101119. The next prime is 120021010101131. The reversal of 120021010101121 is 121101010120021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112848447690225 + 7172562410896 = 10623015^2 + 2678164^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021010101121 - 2¹ = 120021010101119 is a prime.

It is a super-2 number, since 2×120021010101121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021010101131) 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, 3530029708840 + ... + 3530029708873.

It is an arithmetic number, because the mean of its divisors is an integer number (31770267379713).

Almost surely, 2^{120021010101121} is an apocalyptic number.

It is an amenable number.

120021010101121 is a deficient number, since it is larger than the sum of its proper divisors (7060059417731).

120021010101121 is an equidigital number, since it uses as much as digits as its factorization.

120021010101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060059417730.

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

Adding to 120021010101121 its reverse (121101010120021), we get a palindrome (241122020221142).

The spelling of 120021010101121 in words is "one hundred twenty trillion, twenty-one billion, ten million, one hundred one thousand, one hundred twenty-one".