11020102120121 has 4 divisors (see below), whose sum is σ = 11087710108752. Its totient is φ = 10952494131492.

The previous prime is 11020102120109. The next prime is 11020102120123. The reversal of 11020102120121 is 12102120102011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11020102120121 - 2¹⁸ = 11020101857977 is a prime.

It is a super-2 number, since 2×11020102120121² (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 = 11020102120096 and 11020102120105.

It is not an unprimeable number, because it can be changed into a prime (11020102120123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33803994071 + ... + 33803994396.

It is an arithmetic number, because the mean of its divisors is an integer number (2771927527188).

Almost surely, 2^{11020102120121} is an apocalyptic number.

It is an amenable number.

11020102120121 is a deficient number, since it is larger than the sum of its proper divisors (67607988631).

11020102120121 is an equidigital number, since it uses as much as digits as its factorization.

11020102120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67607988630.

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

Adding to 11020102120121 its reverse (12102120102011), we get a palindrome (23122222222132).

The spelling of 11020102120121 in words is "eleven trillion, twenty billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".