1121202101251 has 2 divisors, whose sum is σ = 1121202101252. Its totient is φ = 1121202101250.

The previous prime is 1121202101237. The next prime is 1121202101287. The reversal of 1121202101251 is 1521012021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121202101251 - 2¹³ = 1121202093059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121202101221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560601050625 + 560601050626.

It is an arithmetic number, because the mean of its divisors is an integer number (560601050626).

Almost surely, 2^{1121202101251} is an apocalyptic number.

1121202101251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121202101251 is an equidigital number, since it uses as much as digits as its factorization.

1121202101251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 1121202101251 its reverse (1521012021211), we get a palindrome (2642214122462).

The spelling of 1121202101251 in words is "one trillion, one hundred twenty-one billion, two hundred two million, one hundred one thousand, two hundred fifty-one".