1121222102021 has 16 divisors (see below), whose sum is σ = 1299288609024. Its totient is φ = 947635438464.

The previous prime is 1121222102003. The next prime is 1121222102047. The reversal of 1121222102021 is 1202012221211.

It is a cyclic number.

It is not a de Polignac number, because 1121222102021 - 2²⁶ = 1121154993157 is a prime.

It is a super-3 number, since 3×1121222102021³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222182021) 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, 1689995 + ... + 2257991.

It is an arithmetic number, because the mean of its divisors is an integer number (81205538064).

Almost surely, 2^{1121222102021} is an apocalyptic number.

It is an amenable number.

1121222102021 is a deficient number, since it is larger than the sum of its proper divisors (178066507003).

1121222102021 is an equidigital number, since it uses as much as digits as its factorization.

1121222102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571940.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1121222102021 its reverse (1202012221211), we get a palindrome (2323234323232).

The spelling of 1121222102021 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred two thousand, twenty-one".