11011001221210 has 16 divisors (see below), whose sum is σ = 19827059589792. Its totient is φ = 4402787734800.

The previous prime is 11011001221139. The next prime is 11011001221217. The reversal of 11011001221210 is 1212210011011.

It is a happy number.

It is a super-2 number, since 2×11011001221210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11011001221217) 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, 201565536 + ... + 201620155.

It is an arithmetic number, because the mean of its divisors is an integer number (1239191224362).

Almost surely, 2^{11011001221210} is an apocalyptic number.

11011001221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11011001221210 is a deficient number, since it is larger than the sum of its proper divisors (8816058368582).

11011001221210 is a wasteful number, since it uses less digits than its factorization.

11011001221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403188429.

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

Adding to 11011001221210 its reverse (1212210011011), we get a palindrome (12223211232221).

The spelling of 11011001221210 in words is "eleven trillion, eleven billion, one million, two hundred twenty-one thousand, two hundred ten".