121000012122011 has 16 divisors (see below), whose sum is σ = 139931304952320. Its totient is φ = 103406025790080.

The previous prime is 121000012121941. The next prime is 121000012122023. The reversal of 121000012122011 is 110221210000121.

It is a cyclic number.

It is not a de Polignac number, because 121000012122011 - 2³⁴ = 120982832252827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000012122211) 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, 385456271 + ... + 385770056.

It is an arithmetic number, because the mean of its divisors is an integer number (8745706559520).

Almost surely, 2^{121000012122011} is an apocalyptic number.

121000012122011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121000012122011 is a deficient number, since it is larger than the sum of its proper divisors (18931292830309).

121000012122011 is a wasteful number, since it uses less digits than its factorization.

121000012122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771227194.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121000012122011 its reverse (110221210000121), we get a palindrome (231221222122132).

The spelling of 121000012122011 in words is "one hundred twenty-one trillion, twelve million, one hundred twenty-two thousand, eleven".