1121301322221 has 16 divisors (see below), whose sum is σ = 1506569447808. Its totient is φ = 741794232000.

The previous prime is 1121301322171. The next prime is 1121301322231. The reversal of 1121301322221 is 1222231031211.

It is not a de Polignac number, because 1121301322221 - 2⁷ = 1121301322093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121301322231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888966 + ... + 1741511.

It is an arithmetic number, because the mean of its divisors is an integer number (94160590488).

Almost surely, 2^{1121301322221} is an apocalyptic number.

It is an amenable number.

1121301322221 is a deficient number, since it is larger than the sum of its proper divisors (385268125587).

1121301322221 is a wasteful number, since it uses less digits than its factorization.

1121301322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631572.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1121301322221 its reverse (1222231031211), we get a palindrome (2343532353432).

The spelling of 1121301322221 in words is "one trillion, one hundred twenty-one billion, three hundred one million, three hundred twenty-two thousand, two hundred twenty-one".