20210010231220 has 24 divisors (see below), whose sum is σ = 42441107998464. Its totient is φ = 8083987613856.

The previous prime is 20210010231217. The next prime is 20210010231239. The reversal of 20210010231220 is 2213201001202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20210010231194 and 20210010231203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15489129 + ... + 16743151.

It is an arithmetic number, because the mean of its divisors is an integer number (1768379499936).

Almost surely, 2^{20210010231220} is an apocalyptic number.

20210010231220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210010231220 is an abundant number, since it is smaller than the sum of its proper divisors (22231097767244).

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

20210010231220 is a wasteful number, since it uses less digits than its factorization.

20210010231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059839 (or 2059837 counting only the distinct ones).

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

Adding to 20210010231220 its reverse (2213201001202), we get a palindrome (22423211232422).

The spelling of 20210010231220 in words is "twenty trillion, two hundred ten billion, ten million, two hundred thirty-one thousand, two hundred twenty".