1011400223020 has 48 divisors (see below), whose sum is σ = 2417766236928. Its totient is φ = 351791380160.

The previous prime is 1011400222919. The next prime is 1011400223063. The reversal of 1011400223020 is 203220041101.

It is a super-2 number, since 2×1011400223020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011400222985 and 1011400223003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99935674 + ... + 99945793.

It is an arithmetic number, because the mean of its divisors is an integer number (50370129936).

Almost surely, 2^{1011400223020} is an apocalyptic number.

1011400223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011400223020 is an abundant number, since it is smaller than the sum of its proper divisors (1406366013908).

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

1011400223020 is a wasteful number, since it uses less digits than its factorization.

1011400223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199881510 (or 199881508 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1011400223020 its reverse (203220041101), we get a palindrome (1214620264121).

The spelling of 1011400223020 in words is "one trillion, eleven billion, four hundred million, two hundred twenty-three thousand, twenty".