10021202111989 has 2 divisors, whose sum is σ = 10021202111990. Its totient is φ = 10021202111988.

The previous prime is 10021202111929. The next prime is 10021202112013. The reversal of 10021202111989 is 98911120212001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7623479934225 + 2397722177764 = 2761065^2 + 1548458^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021202111989 - 2¹⁷ = 10021201980917 is a prime.

It is a super-2 number, since 2×10021202111989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021202111929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010601055994 + 5010601055995.

It is an arithmetic number, because the mean of its divisors is an integer number (5010601055995).

Almost surely, 2^{10021202111989} is an apocalyptic number.

It is an amenable number.

10021202111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021202111989 is an equidigital number, since it uses as much as digits as its factorization.

10021202111989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 10021202111989 in words is "ten trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, nine hundred eighty-nine".