121000021222011 has 8 divisors (see below), whose sum is σ = 161505542381904. Its totient is φ = 80580590438400.

The previous prime is 121000021222007. The next prime is 121000021222037. The reversal of 121000021222011 is 110222120000121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121000021222011 - 2² = 121000021222007 is a prime.

It is a super-2 number, since 2×121000021222011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121000021222051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21522590790 + ... + 21522596411.

It is an arithmetic number, because the mean of its divisors is an integer number (20188192797738).

Almost surely, 2^{121000021222011} is an apocalyptic number.

121000021222011 is a deficient number, since it is larger than the sum of its proper divisors (40505521159893).

121000021222011 is an equidigital number, since it uses as much as digits as its factorization.

121000021222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43045188141.

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

Adding to 121000021222011 its reverse (110222120000121), we get a palindrome (231222141222132).

The spelling of 121000021222011 in words is "one hundred twenty-one trillion, twenty-one million, two hundred twenty-two thousand, eleven".