1020022121011 has 2 divisors, whose sum is σ = 1020022121012. Its totient is φ = 1020022121010.

The previous prime is 1020022121009. The next prime is 1020022121047. The reversal of 1020022121011 is 1101212200201.

It is a weak prime.

It is an emirp because it is prime and its reverse (1101212200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020022121011 - 2¹ = 1020022121009 is a prime.

Together with 1020022121009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020022120982 and 1020022121000.

It is not a weakly prime, because it can be changed into another prime (1020022121051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011060505 + 510011060506.

It is an arithmetic number, because the mean of its divisors is an integer number (510011060506).

Almost surely, 2^{1020022121011} is an apocalyptic number.

1020022121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022121011 is an equidigital number, since it uses as much as digits as its factorization.

1020022121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020022121011 its reverse (1101212200201), we get a palindrome (2121234321212).

The spelling of 1020022121011 in words is "one trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, eleven".