11231251622220 has 72 divisors (see below), whose sum is σ = 36581791007664. Its totient is φ = 2567143227264.

The previous prime is 11231251622197. The next prime is 11231251622221. The reversal of 11231251622220 is 2222615213211.

It is a super-2 number, since 2×11231251622220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11231251622221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1910073867 + ... + 1910079746.

It is an arithmetic number, because the mean of its divisors is an integer number (508080430662).

Almost surely, 2^{11231251622220} is an apocalyptic number.

11231251622220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231251622220 is an abundant number, since it is smaller than the sum of its proper divisors (25350539385444).

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

11231251622220 is a wasteful number, since it uses less digits than its factorization.

11231251622220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820153639 (or 3820153630 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 11231251622220 its reverse (2222615213211), we get a palindrome (13453866835431).

The spelling of 11231251622220 in words is "eleven trillion, two hundred thirty-one billion, two hundred fifty-one million, six hundred twenty-two thousand, two hundred twenty".