11200120212121 has 16 divisors (see below), whose sum is σ = 12244727190528. Its totient is φ = 10198556697600.

The previous prime is 11200120212037. The next prime is 11200120212131. The reversal of 11200120212121 is 12121202100211.

It is a cyclic number.

It is not a de Polignac number, because 11200120212121 - 2⁷ = 11200120211993 is a prime.

It is a super-2 number, since 2×11200120212121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200120212095 and 11200120212104.

It is not an unprimeable number, because it can be changed into a prime (11200120212131) 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, 802645 + ... + 4800466.

It is an arithmetic number, because the mean of its divisors is an integer number (765295449408).

Almost surely, 2^{11200120212121} is an apocalyptic number.

It is an amenable number.

11200120212121 is a deficient number, since it is larger than the sum of its proper divisors (1044606978407).

11200120212121 is a wasteful number, since it uses less digits than its factorization.

11200120212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606952.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11200120212121 its reverse (12121202100211), we get a palindrome (23321322312332).

The spelling of 11200120212121 in words is "eleven trillion, two hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".