11011021201210 has 16 divisors (see below), whose sum is σ = 19820482991136. Its totient is φ = 4404265185168.

The previous prime is 11011021201189. The next prime is 11011021201231. The reversal of 11011021201210 is 1210212011011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11011021201189) and next prime (11011021201231).

It is a super-2 number, since 2×11011021201210² (a number of 27 digits) contains 22 as substring.

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, 17588904 + ... + 18204163.

It is an arithmetic number, because the mean of its divisors is an integer number (1238780186946).

Almost surely, 2^{11011021201210} is an apocalyptic number.

11011021201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11011021201210 is a deficient number, since it is larger than the sum of its proper divisors (8809461789926).

11011021201210 is a wasteful number, since it uses less digits than its factorization.

11011021201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35823837.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011021201210 its reverse (1210212011011), we get a palindrome (12221233212221).

The spelling of 11011021201210 in words is "eleven trillion, eleven billion, twenty-one million, two hundred one thousand, two hundred ten".