10212120001020 has 96 divisors (see below), whose sum is σ = 33002336457216. Its totient is φ = 2311087968000.

The previous prime is 10212120000967. The next prime is 10212120001093. The reversal of 10212120001020 is 2010002121201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10212120000987 and 10212120001005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120326746 + ... + 120411585.

It is an arithmetic number, because the mean of its divisors is an integer number (343774338096).

Almost surely, 2^{10212120001020} is an apocalyptic number.

10212120001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212120001020 is an abundant number, since it is smaller than the sum of its proper divisors (22790216456196).

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

10212120001020 is a wasteful number, since it uses less digits than its factorization.

10212120001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240738451 (or 240738449 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10212120001020 its reverse (2010002121201), we get a palindrome (12222122122221).

The spelling of 10212120001020 in words is "ten trillion, two hundred twelve billion, one hundred twenty million, one thousand, twenty".