1210121213331 has 8 divisors (see below), whose sum is σ = 1683646905600. Its totient is φ = 771671498312.

The previous prime is 1210121213291. The next prime is 1210121213341. The reversal of 1210121213331 is 1333121210121.

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 1210121213331 - 2³⁰ = 1209047471507 is a prime.

It is a super-2 number, since 2×1210121213331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210121213298 and 1210121213307.

It is not an unprimeable number, because it can be changed into a prime (1210121213341) 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, 8768994231 + ... + 8768994368.

It is an arithmetic number, because the mean of its divisors is an integer number (210455863200).

Almost surely, 2^{1210121213331} is an apocalyptic number.

1210121213331 is a deficient number, since it is larger than the sum of its proper divisors (473525692269).

1210121213331 is a wasteful number, since it uses less digits than its factorization.

1210121213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17537988625.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1210121213331 its reverse (1333121210121), we get a palindrome (2543242423452).

The spelling of 1210121213331 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-one".