11222121021102 has 24 divisors (see below), whose sum is σ = 24318510551400. Its totient is φ = 3740104698480.

The previous prime is 11222121021043. The next prime is 11222121021127. The reversal of 11222121021102 is 20112012122211.

11222121021102 is a `hidden beast` number, since 112 + 221 + 210 + 21 + 102 = 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 11 ways as a sum of consecutive naturals, for example, 50077477 + ... + 50301072.

It is an arithmetic number, because the mean of its divisors is an integer number (1013271272975).

Almost surely, 2^{11222121021102} is an apocalyptic number.

11222121021102 is an abundant number, since it is smaller than the sum of its proper divisors (13096389530298).

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

11222121021102 is a wasteful number, since it uses less digits than its factorization.

11222121021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100384768 (or 100384765 counting only the distinct ones).

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

Adding to 11222121021102 its reverse (20112012122211), we get a palindrome (31334133143313).

The spelling of 11222121021102 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty-one thousand, one hundred two".