121213033101 has 12 divisors (see below), whose sum is σ = 175097319228. Its totient is φ = 80803230144.

The previous prime is 121213033093. The next prime is 121213033103. The reversal of 121213033101 is 101330312121.

121213033101 is a `hidden beast` number, since 121 + 213 + 0 + 331 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 106650577476 + 14562455625 = 326574^2 + 120675^2 .

It is not a de Polignac number, because 121213033101 - 2³ = 121213033093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213033103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311880 + ... + 582833.

It is an arithmetic number, because the mean of its divisors is an integer number (14591443269).

Almost surely, 2^121213033101 is an apocalyptic number.

It is an amenable number.

121213033101 is a deficient number, since it is larger than the sum of its proper divisors (53884286127).

121213033101 is a wasteful number, since it uses less digits than its factorization.

121213033101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909772 (or 909769 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121213033101 its reverse (101330312121), we get a palindrome (222543345222).

The spelling of 121213033101 in words is "one hundred twenty-one billion, two hundred thirteen million, thirty-three thousand, one hundred one".