1220121122193 has 24 divisors (see below), whose sum is σ = 1787618069120. Its totient is φ = 801807271200.

The previous prime is 1220121122191. The next prime is 1220121122261. The reversal of 1220121122193 is 3912211210221.

1220121122193 is a `hidden beast` number, since 1 + 220 + 1 + 211 + 221 + 9 + 3 = 666.

It is not a de Polignac number, because 1220121122193 - 2¹ = 1220121122191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220121122191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 963883 + ... + 1835568.

Almost surely, 2^{1220121122193} is an apocalyptic number.

It is an amenable number.

1220121122193 is a deficient number, since it is larger than the sum of its proper divisors (567496946927).

1220121122193 is a wasteful number, since it uses less digits than its factorization.

1220121122193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800149 (or 2800146 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 1220121122193 in words is "one trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred ninety-three".