121200221021011 has 8 divisors (see below), whose sum is σ = 132882837120000. Its totient is φ = 109628340620040.

The previous prime is 121200221020993. The next prime is 121200221021051. The reversal of 121200221021011 is 110120122002121.

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

It is not a de Polignac number, because 121200221021011 - 2²¹ = 121200218923859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200221021051) 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, 27683922211 + ... + 27683926588.

It is an arithmetic number, because the mean of its divisors is an integer number (16610354640000).

Almost surely, 2^{121200221021011} is an apocalyptic number.

121200221021011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121200221021011 is a deficient number, since it is larger than the sum of its proper divisors (11682616098989).

121200221021011 is a wasteful number, since it uses less digits than its factorization.

121200221021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55367849009.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121200221021011 its reverse (110120122002121), we get a palindrome (231320343023132).

The spelling of 121200221021011 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-one million, twenty-one thousand, eleven".