121000212201 has 32 divisors (see below), whose sum is σ = 176647127040. Its totient is φ = 73064376000.

The previous prime is 121000212191. The next prime is 121000212233. The reversal of 121000212201 is 102212000121.

It is not a de Polignac number, because 121000212201 - 2¹³ = 121000204009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121000212241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13279035 + ... + 13288143.

It is an arithmetic number, because the mean of its divisors is an integer number (5520222720).

Almost surely, 2^121000212201 is an apocalyptic number.

121000212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121000212201 is a deficient number, since it is larger than the sum of its proper divisors (55646914839).

121000212201 is a wasteful number, since it uses less digits than its factorization.

121000212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557.

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

Adding to 121000212201 its reverse (102212000121), we get a palindrome (223212212322).

The spelling of 121000212201 in words is "one hundred twenty-one billion, two hundred twelve thousand, two hundred one".