10012020001220 has 24 divisors (see below), whose sum is σ = 21164482022208. Its totient is φ = 3978286092000.

The previous prime is 10012020001199. The next prime is 10012020001301. The reversal of 10012020001220 is 2210002021001.

It is a happy number.

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, 1657616186 + ... + 1657622225.

It is an arithmetic number, because the mean of its divisors is an integer number (881853417592).

Almost surely, 2^{10012020001220} is an apocalyptic number.

10012020001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012020001220 is an abundant number, since it is smaller than the sum of its proper divisors (11152462020988).

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

10012020001220 is a wasteful number, since it uses less digits than its factorization.

10012020001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315238571 (or 3315238569 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10012020001220 its reverse (2210002021001), we get a palindrome (12222022022221).

The spelling of 10012020001220 in words is "ten trillion, twelve billion, twenty million, one thousand, two hundred twenty".