1122121010100 has 36 divisors (see below), whose sum is σ = 3246670123424. Its totient is φ = 299232269280.

The previous prime is 1122121010077. The next prime is 1122121010243. The reversal of 1122121010100 is 10101212211.

It is a super-2 number, since 2×1122121010100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870201384 + ... + 1870201983.

Almost surely, 2^{1122121010100} is an apocalyptic number.

1122121010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122121010100 is an abundant number, since it is smaller than the sum of its proper divisors (2124549113324).

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

1122121010100 is a wasteful number, since it uses less digits than its factorization.

1122121010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740403384 (or 3740403377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1122121010100 its reverse (10101212211), we get a palindrome (1132222222311).

The spelling of 1122121010100 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, ten thousand, one hundred".