1142222161901 has 2 divisors, whose sum is σ = 1142222161902. Its totient is φ = 1142222161900.

The previous prime is 1142222161897. The next prime is 1142222161933. The reversal of 1142222161901 is 1091612222411.

It is an a-pointer prime, because the next prime (1142222161933) can be obtained adding 1142222161901 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 837821686276 + 304400475625 = 915326^2 + 551725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142222161901 - 2² = 1142222161897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142222151901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571111080950 + 571111080951.

It is an arithmetic number, because the mean of its divisors is an integer number (571111080951).

Almost surely, 2^{1142222161901} is an apocalyptic number.

It is an amenable number.

1142222161901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142222161901 is an equidigital number, since it uses as much as digits as its factorization.

1142222161901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 1142222161901 in words is "one trillion, one hundred forty-two billion, two hundred twenty-two million, one hundred sixty-one thousand, nine hundred one".