11220121100023 has 16 divisors (see below), whose sum is σ = 12662691703200. Its totient is φ = 9848004100480.

The previous prime is 11220121100011. The next prime is 11220121100113. The reversal of 11220121100023 is 32000112102211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220121100023 is a prime.

It is a super-2 number, since 2×11220121100023² (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 (11220121100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7814973 + ... + 9138601.

It is an arithmetic number, because the mean of its divisors is an integer number (791418231450).

Almost surely, 2^{11220121100023} is an apocalyptic number.

11220121100023 is a deficient number, since it is larger than the sum of its proper divisors (1442570603177).

11220121100023 is a wasteful number, since it uses less digits than its factorization.

11220121100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350242.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11220121100023 its reverse (32000112102211), we get a palindrome (43220233202234).

The spelling of 11220121100023 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-one million, one hundred thousand, twenty-three".