1122000222021 has 64 divisors (see below), whose sum is σ = 1734139072512. Its totient is φ = 632062080000.

The previous prime is 1122000222001. The next prime is 1122000222121. The reversal of 1122000222021 is 1202220002211.

It is not a de Polignac number, because 1122000222021 - 2¹⁴ = 1122000205637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122000222001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305637016 + ... + 305640686.

It is an arithmetic number, because the mean of its divisors is an integer number (27095923008).

Almost surely, 2^{1122000222021} is an apocalyptic number.

It is an amenable number.

1122000222021 is a deficient number, since it is larger than the sum of its proper divisors (612138850491).

1122000222021 is a wasteful number, since it uses less digits than its factorization.

1122000222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1122000222021 its reverse (1202220002211), we get a palindrome (2324220224232).

The spelling of 1122000222021 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two thousand, twenty-one".