121002220011 has 8 divisors (see below), whose sum is σ = 163981150864. Its totient is φ = 79345717920.

The previous prime is 121002219997. The next prime is 121002220021. The reversal of 121002220011 is 110022200121.

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

It is not a de Polignac number, because 121002220011 - 2⁷ = 121002219883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121002220021) 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, 330606976 + ... + 330607341.

It is an arithmetic number, because the mean of its divisors is an integer number (20497643858).

Almost surely, 2^121002220011 is an apocalyptic number.

121002220011 is a deficient number, since it is larger than the sum of its proper divisors (42978930853).

121002220011 is an equidigital number, since it uses as much as digits as its factorization.

121002220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661214381.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121002220011 its reverse (110022200121), we get a palindrome (231024420132).

It can be divided in two parts, 1 and 21002220011, that added together give a palindrome (21002220012).

The spelling of 121002220011 in words is "one hundred twenty-one billion, two million, two hundred twenty thousand, eleven".