121102211131230 has 128 divisors (see below), whose sum is σ = 343624948531200. Its totient is φ = 26725625547264.

The previous prime is 121102211131229. The next prime is 121102211131331. The reversal of 121102211131230 is 32131112201121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 121102211131197 and 121102211131206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 811009816 + ... + 811159124.

It is an arithmetic number, because the mean of its divisors is an integer number (2684569910400).

Almost surely, 2^{121102211131230} is an apocalyptic number.

121102211131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121102211131230 is an abundant number, since it is smaller than the sum of its proper divisors (222522737399970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121102211131230 is a wasteful number, since it uses less digits than its factorization.

121102211131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282538.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121102211131230 its reverse (32131112201121), we get a palindrome (153233323332351).

The spelling of 121102211131230 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, one hundred thirty-one thousand, two hundred thirty".