1100101012020 has 144 divisors (see below), whose sum is σ = 3501087582720. Its totient is φ = 279242899200.

The previous prime is 1100101012007. The next prime is 1100101012027. The reversal of 1100101012020 is 202101010011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1100101011993 and 1100101012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100101012027) 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, 1275610 + ... + 1956369.

Almost surely, 2^{1100101012020} is an apocalyptic number.

1100101012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100101012020 is an abundant number, since it is smaller than the sum of its proper divisors (2400986570700).

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

1100101012020 is a wasteful number, since it uses less digits than its factorization.

1100101012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232086 (or 3232081 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100101012020 its reverse (202101010011), we get a palindrome (1302202022031).

The spelling of 1100101012020 in words is "one trillion, one hundred billion, one hundred one million, twelve thousand, twenty".