101212110020 has 48 divisors (see below), whose sum is σ = 243153039360. Its totient is φ = 34666441344.

The previous prime is 101212110019. The next prime is 101212110023. The reversal of 101212110020 is 20011212101.

It is a junction number, because it is equal to n+sod(n) for n = 101212109983 and 101212110010.

It is not an unprimeable number, because it can be changed into a prime (101212110023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222980 + ... + 502139.

It is an arithmetic number, because the mean of its divisors is an integer number (5065688320).

Almost surely, 2^101212110020 is an apocalyptic number.

101212110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212110020 is an abundant number, since it is smaller than the sum of its proper divisors (141940929340).

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

101212110020 is a wasteful number, since it uses less digits than its factorization.

101212110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726132 (or 726130 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101212110020 its reverse (20011212101), we get a palindrome (121223322121).

The spelling of 101212110020 in words is "one hundred one billion, two hundred twelve million, one hundred ten thousand, twenty".