1022121544100 has 18 divisors (see below), whose sum is σ = 2218003750914. Its totient is φ = 408848617600.

The previous prime is 1022121544099. The next prime is 1022121544133. The reversal of 1022121544100 is 14451212201.

It can be written as a sum of positive squares in 3 ways, for example, as 9775672384 + 1012345871716 = 98872^2 + 1006154^2 .

It is a super-3 number, since 3×1022121544100³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5110607621 + ... + 5110607820.

Almost surely, 2^{1022121544100} is an apocalyptic number.

1022121544100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022121544100 is an abundant number, since it is smaller than the sum of its proper divisors (1195882206814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022121544100 is a wasteful number, since it uses less digits than its factorization.

1022121544100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221215455 (or 10221215448 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 1022121544100 its reverse (14451212201), we get a palindrome (1036572756301).

The spelling of 1022121544100 in words is "one trillion, twenty-two billion, one hundred twenty-one million, five hundred forty-four thousand, one hundred".