1122021021121 has 48 divisors (see below), whose sum is σ = 1532932821504. Its totient is φ = 799056720000.

The previous prime is 1122021021113. The next prime is 1122021021127. The reversal of 1122021021121 is 1211201202211.

It is not a de Polignac number, because 1122021021121 - 2³ = 1122021021113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122021021095 and 1122021021104.

It is not an unprimeable number, because it can be changed into a prime (1122021021127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 607656 + ... + 1616566.

It is an arithmetic number, because the mean of its divisors is an integer number (31936100448).

Almost surely, 2^{1122021021121} is an apocalyptic number.

1122021021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122021021121 is a deficient number, since it is larger than the sum of its proper divisors (410911800383).

1122021021121 is a wasteful number, since it uses less digits than its factorization.

1122021021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009054 (or 1009043 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122021021121 its reverse (1211201202211), we get a palindrome (2333222223332).

The spelling of 1122021021121 in words is "one trillion, one hundred twenty-two billion, twenty-one million, twenty-one thousand, one hundred twenty-one".