11121212022102 has 192 divisors, whose sum is σ = 30274428562560. Its totient is φ = 2872379750400.

The previous prime is 11121212022031. The next prime is 11121212022161. The reversal of 11121212022102 is 20122021212111.

11121212022102 is a `hidden beast` number, since 111 + 212 + 120 + 221 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22638202 + ... + 23124242.

It is an arithmetic number, because the mean of its divisors is an integer number (157679315430).

Almost surely, 2^{11121212022102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121212022102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15137214281280).

11121212022102 is an abundant number, since it is smaller than the sum of its proper divisors (19153216540458).

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

11121212022102 is a wasteful number, since it uses less digits than its factorization.

11121212022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486359 (or 486356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11121212022102 its reverse (20122021212111), we get a palindrome (31243233234213).

The spelling of 11121212022102 in words is "eleven trillion, one hundred twenty-one billion, two hundred twelve million, twenty-two thousand, one hundred two".