1022243252121 has 48 divisors (see below), whose sum is σ = 1818600516096. Its totient is φ = 538825696128.

The previous prime is 1022243252089. The next prime is 1022243252131. The reversal of 1022243252121 is 1212523422201.

1022243252121 is a `hidden beast` number, since 1 + 0 + 222 + 432 + 5 + 2 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 1022243252121 - 2⁵ = 1022243252089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022243252131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 726871 + ... + 1604003.

It is an arithmetic number, because the mean of its divisors is an integer number (37887510752).

Almost surely, 2^{1022243252121} is an apocalyptic number.

It is an amenable number.

1022243252121 is a deficient number, since it is larger than the sum of its proper divisors (796357263975).

1022243252121 is a wasteful number, since it uses less digits than its factorization.

1022243252121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878582 (or 878579 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1022243252121 its reverse (1212523422201), we get a palindrome (2234766674322).

The spelling of 1022243252121 in words is "one trillion, twenty-two billion, two hundred forty-three million, two hundred fifty-two thousand, one hundred twenty-one".