120022121000221 has 4 divisors (see below), whose sum is σ = 130933222909344. Its totient is φ = 109111019091100.

The previous prime is 120022121000209. The next prime is 120022121000233. The reversal of 120022121000221 is 122000121220021.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (120022121000209) and next prime (120022121000233).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120022121000221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120022121000195 and 120022121000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120022121000281) 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, 5455550954545 + ... + 5455550954566.

It is an arithmetic number, because the mean of its divisors is an integer number (32733305727336).

Almost surely, 2^{120022121000221} is an apocalyptic number.

120022121000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120022121000221 is a deficient number, since it is larger than the sum of its proper divisors (10911101909123).

120022121000221 is a wasteful number, since it uses less digits than its factorization.

120022121000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911101909122.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120022121000221 its reverse (122000121220021), we get a palindrome (242022242220242).

The spelling of 120022121000221 in words is "one hundred twenty trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-one", and thus it is an aban number.