11102122020021 has 16 divisors (see below), whose sum is σ = 14909786841600. Its totient is φ = 7347939241968.

The previous prime is 11102122020019. The next prime is 11102122020091. The reversal of 11102122020021 is 12002022120111.

It is not a de Polignac number, because 11102122020021 - 2¹ = 11102122020019 is a prime.

It is a super-2 number, since 2×11102122020021² (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 (11102122020091) 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, 13623160 + ... + 14415086.

It is an arithmetic number, because the mean of its divisors is an integer number (931861677600).

Almost surely, 2^{11102122020021} is an apocalyptic number.

It is an amenable number.

11102122020021 is a deficient number, since it is larger than the sum of its proper divisors (3807664821579).

11102122020021 is a wasteful number, since it uses less digits than its factorization.

11102122020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825688.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11102122020021 its reverse (12002022120111), we get a palindrome (23104144140132).

The spelling of 11102122020021 in words is "eleven trillion, one hundred two billion, one hundred twenty-two million, twenty thousand, twenty-one".