10121212002220 has 48 divisors (see below), whose sum is σ = 23219853654816. Its totient is φ = 3675190400000.

The previous prime is 10121212002179. The next prime is 10121212002257. The reversal of 10121212002220 is 2220021212101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10121212002194 and 10121212002203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32659981 + ... + 32968420.

It is an arithmetic number, because the mean of its divisors is an integer number (483746951142).

Almost surely, 2^{10121212002220} is an apocalyptic number.

10121212002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121212002220 is an abundant number, since it is smaller than the sum of its proper divisors (13098641652596).

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

10121212002220 is a wasteful number, since it uses less digits than its factorization.

10121212002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65629122 (or 65629120 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10121212002220 its reverse (2220021212101), we get a palindrome (12341233214321).

The spelling of 10121212002220 in words is "ten trillion, one hundred twenty-one billion, two hundred twelve million, two thousand, two hundred twenty".