1122021000008 has 8 divisors (see below), whose sum is σ = 2103789375030. Its totient is φ = 561010500000.

The previous prime is 1122021000007. The next prime is 1122021000011. The reversal of 1122021000008 is 8000001202211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 897494759044 + 224526240964 = 947362^2 + 473842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1122021000008² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122021000008.

It is not an unprimeable number, because it can be changed into a prime (1122021000007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70126312493 + ... + 70126312508.

Almost surely, 2^{1122021000008} is an apocalyptic number.

It is an amenable number.

1122021000008 is a deficient number, since it is larger than the sum of its proper divisors (981768375022).

1122021000008 is a wasteful number, since it uses less digits than its factorization.

1122021000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140252625007 (or 140252625003 counting only the distinct ones).

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

Adding to 1122021000008 its reverse (8000001202211), we get a palindrome (9122022202219).

The spelling of 1122021000008 in words is "one trillion, one hundred twenty-two billion, twenty-one million, eight", and thus it is an aban number.