1221202202053 has 2 divisors, whose sum is σ = 1221202202054. Its totient is φ = 1221202202052.

The previous prime is 1221202202041. The next prime is 1221202202123. The reversal of 1221202202053 is 3502022021221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194557189764 + 26645012289 = 1092958^2 + 163233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1221202202053 - 2²⁹ = 1220665331141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221202202153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610601101026 + 610601101027.

It is an arithmetic number, because the mean of its divisors is an integer number (610601101027).

Almost surely, 2^{1221202202053} is an apocalyptic number.

It is an amenable number.

1221202202053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221202202053 is an equidigital number, since it uses as much as digits as its factorization.

1221202202053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 1221202202053 its reverse (3502022021221), we get a palindrome (4723224223274).

The spelling of 1221202202053 in words is "one trillion, two hundred twenty-one billion, two hundred two million, two hundred two thousand, fifty-three".