121000202011 has 16 divisors (see below), whose sum is σ = 136191031200. Its totient is φ = 106729233408.

The previous prime is 121000201967. The next prime is 121000202017. The reversal of 121000202011 is 110202000121.

It is a cyclic number.

It is not a de Polignac number, because 121000202011 - 2¹⁵ = 121000169243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000202017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617841 + ... + 1690978.

It is an arithmetic number, because the mean of its divisors is an integer number (8511939450).

Almost surely, 2^121000202011 is an apocalyptic number.

121000202011 is a deficient number, since it is larger than the sum of its proper divisors (15190829189).

121000202011 is a wasteful number, since it uses less digits than its factorization.

121000202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308958.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121000202011 its reverse (110202000121), we get a palindrome (231202202132).

The spelling of 121000202011 in words is "one hundred twenty-one billion, two hundred two thousand, eleven".