120202011202121 has 4 divisors (see below), whose sum is σ = 120207626303232. Its totient is φ = 120196396101012.

The previous prime is 120202011202033. The next prime is 120202011202129. The reversal of 120202011202121 is 121202110202021.

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 a de Polignac number, because none of the positive numbers 2^k-120202011202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120202011202121.

It is not an unprimeable number, because it can be changed into a prime (120202011202129) 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, 2807518445 + ... + 2807561258.

It is an arithmetic number, because the mean of its divisors is an integer number (30051906575808).

Almost surely, 2^{120202011202121} is an apocalyptic number.

It is an amenable number.

120202011202121 is a deficient number, since it is larger than the sum of its proper divisors (5615101111).

120202011202121 is an equidigital number, since it uses as much as digits as its factorization.

120202011202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615101110.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120202011202121 its reverse (121202110202021), we get a palindrome (241404121404142).

The spelling of 120202011202121 in words is "one hundred twenty trillion, two hundred two billion, eleven million, two hundred two thousand, one hundred twenty-one".