11021220010121 has 16 divisors (see below), whose sum is σ = 11805965860800. Its totient is φ = 10258055405568.

The previous prime is 11021220010103. The next prime is 11021220010127. The reversal of 11021220010121 is 12101002212011.

It is a cyclic number.

It is not a de Polignac number, because 11021220010121 - 2²² = 11021215815817 is a prime.

It is a super-2 number, since 2×11021220010121² (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 = 11021220010096 and 11021220010105.

It is not an unprimeable number, because it can be changed into a prime (11021220010127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15102851 + ... + 15815768.

It is an arithmetic number, because the mean of its divisors is an integer number (737872866300).

Almost surely, 2^{11021220010121} is an apocalyptic number.

It is an amenable number.

11021220010121 is a deficient number, since it is larger than the sum of its proper divisors (784745850679).

11021220010121 is a wasteful number, since it uses less digits than its factorization.

11021220010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30918968.

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

Adding to 11021220010121 its reverse (12101002212011), we get a palindrome (23122222222132).

The spelling of 11021220010121 in words is "eleven trillion, twenty-one billion, two hundred twenty million, ten thousand, one hundred twenty-one".