1213121233102 has 16 divisors (see below), whose sum is σ = 1858431569472. Its totient is φ = 593644502880.

The previous prime is 1213121233091. The next prime is 1213121233133. The reversal of 1213121233102 is 2013321213121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9128452 + ... + 9260392.

It is an arithmetic number, because the mean of its divisors is an integer number (116151973092).

Almost surely, 2^{1213121233102} is an apocalyptic number.

1213121233102 is a deficient number, since it is larger than the sum of its proper divisors (645310336370).

1213121233102 is a wasteful number, since it uses less digits than its factorization.

1213121233102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229803.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213121233102 its reverse (2013321213121), we get a palindrome (3226442446223).

The spelling of 1213121233102 in words is "one trillion, two hundred thirteen billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred two".