121132211213 has 8 divisors (see below), whose sum is σ = 138123607608. Its totient is φ = 105237033984.

The previous prime is 121132211153. The next prime is 121132211219. The reversal of 121132211213 is 312112231121.

It can be written as a sum of positive squares in 4 ways, for example, as 235530409 + 120896680804 = 15347^2 + 347702^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121132211213 - 2⁸ = 121132210957 is a prime.

It is a super-3 number, since 3×121132211213³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132211219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274054556 + ... + 274054997.

It is an arithmetic number, because the mean of its divisors is an integer number (17265450951).

Almost surely, 2^121132211213 is an apocalyptic number.

121132211213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121132211213 is a deficient number, since it is larger than the sum of its proper divisors (16991396395).

121132211213 is a wasteful number, since it uses less digits than its factorization.

121132211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548109583.

The product of its digits is 144, while the sum is 20.

Adding to 121132211213 its reverse (312112231121), we get a palindrome (433244442334).

The spelling of 121132211213 in words is "one hundred twenty-one billion, one hundred thirty-two million, two hundred eleven thousand, two hundred thirteen".