121222011121101 has 48 divisors (see below), whose sum is σ = 201331474344000. Its totient is φ = 69510645227520.

The previous prime is 121222011121091. The next prime is 121222011121109. The reversal of 121222011121101 is 101121110222121.

It is a happy number.

121222011121101 is a `hidden beast` number, since 1 + 212 + 220 + 11 + 121 + 101 = 666.

121222011121101 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121222011121101 - 2³⁹ = 120672255307213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222011121109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40455666 + ... + 43348643.

It is an arithmetic number, because the mean of its divisors is an integer number (4194405715500).

Almost surely, 2^{121222011121101} is an apocalyptic number.

121222011121101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121222011121101 is a deficient number, since it is larger than the sum of its proper divisors (80109463222899).

121222011121101 is a wasteful number, since it uses less digits than its factorization.

121222011121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83805114 (or 83805111 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121222011121101 its reverse (101121110222121), we get a palindrome (222343121343222).

It can be divided in two parts, 1212220 and 11121101, that added together give a palindrome (12333321).

The spelling of 121222011121101 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, eleven million, one hundred twenty-one thousand, one hundred one".