1001204024220 has 72 divisors (see below), whose sum is σ = 3043903742880. Its totient is φ = 266379546240.

The previous prime is 1001204024203. The next prime is 1001204024237. The reversal of 1001204024220 is 224204021001.

1001204024220 is a `hidden beast` number, since 100 + 120 + 402 + 42 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1001204024203) and next prime (1001204024237).

It is a super-2 number, since 2×1001204024220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1001204024193 and 1001204024202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6256111 + ... + 6414150.

Almost surely, 2^{1001204024220} is an apocalyptic number.

1001204024220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001204024220 is an abundant number, since it is smaller than the sum of its proper divisors (2042699718660).

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

1001204024220 is a wasteful number, since it uses less digits than its factorization.

1001204024220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670715 (or 12670710 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1001204024220 its reverse (224204021001), we get a palindrome (1225408045221).

The spelling of 1001204024220 in words is "one trillion, one billion, two hundred four million, twenty-four thousand, two hundred twenty".