1161122021222 has 32 divisors (see below), whose sum is σ = 1875664628640. Its totient is φ = 537070942720.

The previous prime is 1161122021209. The next prime is 1161122021237. The reversal of 1161122021222 is 2221202211611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15088868 + ... + 15165624.

It is an arithmetic number, because the mean of its divisors is an integer number (58614519645).

Almost surely, 2^{1161122021222} is an apocalyptic number.

1161122021222 is a deficient number, since it is larger than the sum of its proper divisors (714542607418).

1161122021222 is a wasteful number, since it uses less digits than its factorization.

1161122021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84376.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1161122021222 its reverse (2221202211611), we get a palindrome (3382324232833).

The spelling of 1161122021222 in words is "one trillion, one hundred sixty-one billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-two".