121202012231 has 8 divisors (see below), whose sum is σ = 122204459520. Its totient is φ = 120200316768.

The previous prime is 121202012189. The next prime is 121202012251. The reversal of 121202012231 is 132210202121.

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 121202012231 - 2⁶ = 121202012167 is a prime.

It is a super-2 number, since 2×121202012231² (a number of 23 digits) contains 22 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 (121202012251) 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, 138125 + ... + 511353.

It is an arithmetic number, because the mean of its divisors is an integer number (15275557440).

Almost surely, 2^121202012231 is an apocalyptic number.

121202012231 is a deficient number, since it is larger than the sum of its proper divisors (1002447289).

121202012231 is a wasteful number, since it uses less digits than its factorization.

121202012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375913.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121202012231 its reverse (132210202121), we get a palindrome (253412214352).

The spelling of 121202012231 in words is "one hundred twenty-one billion, two hundred two million, twelve thousand, two hundred thirty-one".