1004001042220 has 24 divisors (see below), whose sum is σ = 2300075115408. Its totient is φ = 365091288000.

The previous prime is 1004001042173. The next prime is 1004001042271. The reversal of 1004001042220 is 222401004001.

It is a junction number, because it is equal to n+sod(n) for n = 1004001042194 and 1004001042203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281820331 + ... + 2281820770.

It is an arithmetic number, because the mean of its divisors is an integer number (95836463142).

Almost surely, 2^{1004001042220} is an apocalyptic number.

1004001042220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004001042220 is an abundant number, since it is smaller than the sum of its proper divisors (1296074073188).

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

1004001042220 is a wasteful number, since it uses less digits than its factorization.

1004001042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563641121 (or 4563641119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1004001042220 its reverse (222401004001), we get a palindrome (1226402046221).

The spelling of 1004001042220 in words is "one trillion, four billion, one million, forty-two thousand, two hundred twenty".