11020120121012 has 6 divisors (see below), whose sum is σ = 19285210211778. Its totient is φ = 5510060060504.

The previous prime is 11020120120963. The next prime is 11020120121033. The reversal of 11020120121012 is 21012102102011.

It can be written as a sum of positive squares in only one way, i.e., 10334463255076 + 685656865936 = 3214726^2 + 828044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377515015123 + ... + 1377515015130.

It is an arithmetic number, because the mean of its divisors is an integer number (3214201701963).

Almost surely, 2^{11020120121012} is an apocalyptic number.

It is an amenable number.

11020120121012 is a deficient number, since it is larger than the sum of its proper divisors (8265090090766).

11020120121012 is a wasteful number, since it uses less digits than its factorization.

11020120121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755030030257 (or 2755030030255 counting only the distinct ones).

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

Adding to 11020120121012 its reverse (21012102102011), we get a palindrome (32032222223023).

The spelling of 11020120121012 in words is "eleven trillion, twenty billion, one hundred twenty million, one hundred twenty-one thousand, twelve".