121000020222011 has 4 divisors (see below), whose sum is σ = 138285737396592. Its totient is φ = 103714303047432.

The previous prime is 121000020221989. The next prime is 121000020222023. The reversal of 121000020222011 is 110222020000121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121000020222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000020222611) 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, 8642858587280 + ... + 8642858587293.

It is an arithmetic number, because the mean of its divisors is an integer number (34571434349148).

Almost surely, 2^{121000020222011} is an apocalyptic number.

121000020222011 is a deficient number, since it is larger than the sum of its proper divisors (17285717174581).

121000020222011 is an equidigital number, since it uses as much as digits as its factorization.

121000020222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17285717174580.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121000020222011 its reverse (110222020000121), we get a palindrome (231222040222132).

The spelling of 121000020222011 in words is "one hundred twenty-one trillion, twenty million, two hundred twenty-two thousand, eleven".