121011202012011 has 16 divisors (see below), whose sum is σ = 162053894150400. Its totient is φ = 80321326828128.

The previous prime is 121011202012003. The next prime is 121011202012031. The reversal of 121011202012011 is 110210202110121.

It is a happy number.

It is not a de Polignac number, because 121011202012011 - 2³ = 121011202012003 is a prime.

It is a super-2 number, since 2×121011202012011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121011202012031) 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, 126430680 + ... + 127384218.

It is an arithmetic number, because the mean of its divisors is an integer number (10128368384400).

Almost surely, 2^{121011202012011} is an apocalyptic number.

121011202012011 is a deficient number, since it is larger than the sum of its proper divisors (41042692138389).

121011202012011 is a wasteful number, since it uses less digits than its factorization.

121011202012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138498.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121011202012011 its reverse (110210202110121), we get a palindrome (231221404122132).

The spelling of 121011202012011 in words is "one hundred twenty-one trillion, eleven billion, two hundred two million, twelve thousand, eleven".