1211202332957 has 2 divisors, whose sum is σ = 1211202332958. Its totient is φ = 1211202332956.

The previous prime is 1211202332929. The next prime is 1211202333001. The reversal of 1211202332957 is 7592332021121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713812075876 + 497390257081 = 844874^2 + 705259^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211202332957 - 2¹⁴ = 1211202316573 is a prime.

It is a super-2 number, since 2×1211202332957² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211202332957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211202332927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605601166478 + 605601166479.

It is an arithmetic number, because the mean of its divisors is an integer number (605601166479).

Almost surely, 2^{1211202332957} is an apocalyptic number.

It is an amenable number.

1211202332957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211202332957 is an equidigital number, since it uses as much as digits as its factorization.

1211202332957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 1211202332957 in words is "one trillion, two hundred eleven billion, two hundred two million, three hundred thirty-two thousand, nine hundred fifty-seven".