1011202021097 has 2 divisors, whose sum is σ = 1011202021098. Its totient is φ = 1011202021096.

The previous prime is 1011202021087. The next prime is 1011202021243. The reversal of 1011202021097 is 7901202021101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713330578921 + 297871442176 = 844589^2 + 545776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011202021097 - 2⁶ = 1011202021033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011202021087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505601010548 + 505601010549.

It is an arithmetic number, because the mean of its divisors is an integer number (505601010549).

Almost surely, 2^{1011202021097} is an apocalyptic number.

It is an amenable number.

1011202021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011202021097 is an equidigital number, since it uses as much as digits as its factorization.

1011202021097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 1011202021097 its reverse (7901202021101), we get a palindrome (8912404042198).

The spelling of 1011202021097 in words is "one trillion, eleven billion, two hundred two million, twenty-one thousand, ninety-seven".