2002121021111 has 2 divisors, whose sum is σ = 2002121021112. Its totient is φ = 2002121021110.

The previous prime is 2002121021057. The next prime is 2002121021177. The reversal of 2002121021111 is 1111201212002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002121021111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002124021111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001060510555 + 1001060510556.

It is an arithmetic number, because the mean of its divisors is an integer number (1001060510556).

Almost surely, 2^{2002121021111} is an apocalyptic number.

2002121021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002121021111 is an equidigital number, since it uses as much as digits as its factorization.

2002121021111 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 14.

Adding to 2002121021111 its reverse (1111201212002), we get a palindrome (3113322233113).

The spelling of 2002121021111 in words is "two trillion, two billion, one hundred twenty-one million, twenty-one thousand, one hundred eleven".