11211121021102 has 16 divisors (see below), whose sum is σ = 17396654756400. Its totient is φ = 5412238050240.

The previous prime is 11211121021069. The next prime is 11211121021103. The reversal of 11211121021102 is 20112012111211.

It is a super-2 number, since 2×11211121021102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211121021103) 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, 15751402 + ... + 16447762.

It is an arithmetic number, because the mean of its divisors is an integer number (1087290922275).

Almost surely, 2^{11211121021102} is an apocalyptic number.

11211121021102 is a deficient number, since it is larger than the sum of its proper divisors (6185533735298).

11211121021102 is a wasteful number, since it uses less digits than its factorization.

11211121021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973971.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11211121021102 its reverse (20112012111211), we get a palindrome (31323133132313).

The spelling of 11211121021102 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred two".