1202020021099 has 2 divisors, whose sum is σ = 1202020021100. Its totient is φ = 1202020021098.

The previous prime is 1202020021087. The next prime is 1202020021129. The reversal of 1202020021099 is 9901200202021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202020021099 - 2⁹ = 1202020020587 is a prime.

It is a super-2 number, since 2×1202020021099² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202020021009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601010010549 + 601010010550.

It is an arithmetic number, because the mean of its divisors is an integer number (601010010550).

Almost surely, 2^{1202020021099} is an apocalyptic number.

1202020021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202020021099 is an equidigital number, since it uses as much as digits as its factorization.

1202020021099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1202020021099 in words is "one trillion, two hundred two billion, twenty million, twenty-one thousand, ninety-nine".