11202011101220 has 24 divisors (see below), whose sum is σ = 23576615811000. Its totient is φ = 4470824916992.

The previous prime is 11202011101187. The next prime is 11202011101231. The reversal of 11202011101220 is 2210111020211.

It can be written as a sum of positive squares in 4 ways, for example, as 3198453250084 + 8003557851136 = 1788422^2 + 2829056^2 .

It is a super-2 number, since 2×11202011101220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11202011101195 and 11202011101204.

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, 623711015 + ... + 623728974.

It is an arithmetic number, because the mean of its divisors is an integer number (982358992125).

Almost surely, 2^{11202011101220} is an apocalyptic number.

11202011101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202011101220 is an abundant number, since it is smaller than the sum of its proper divisors (12374604709780).

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

11202011101220 is a wasteful number, since it uses less digits than its factorization.

11202011101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247440447 (or 1247440445 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11202011101220 its reverse (2210111020211), we get a palindrome (13412122121431).

The spelling of 11202011101220 in words is "eleven trillion, two hundred two billion, eleven million, one hundred one thousand, two hundred twenty".