121021120000011 has 128 divisors (see below), whose sum is σ = 207867723448320. Its totient is φ = 60819385104000.

The previous prime is 121021119999977. The next prime is 121021120000057. The reversal of 121021120000011 is 110000021120121.

It is not a de Polignac number, because 121021120000011 - 2¹⁸ = 121021119737867 is a prime.

It is a super-2 number, since 2×121021120000011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021120040011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 219928960 + ... + 220478546.

It is an arithmetic number, because the mean of its divisors is an integer number (1623966589440).

Almost surely, 2^{121021120000011} is an apocalyptic number.

121021120000011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121021120000011 is a deficient number, since it is larger than the sum of its proper divisors (86846603448309).

121021120000011 is a wasteful number, since it uses less digits than its factorization.

121021120000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549925.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121021120000011 its reverse (110000021120121), we get a palindrome (231021141120132).

The spelling of 121021120000011 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twenty million, eleven", and thus it is an aban number.