1212021002010 has 192 divisors, whose sum is σ = 3649475958912. Its totient is φ = 255342657024.

The previous prime is 1212021001943. The next prime is 1212021002021. The reversal of 1212021002010 is 102001202121.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12890629 + ... + 12984311.

It is an arithmetic number, because the mean of its divisors is an integer number (19007687286).

Almost surely, 2^{1212021002010} is an apocalyptic number.

1212021002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212021002010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824737979456).

1212021002010 is an abundant number, since it is smaller than the sum of its proper divisors (2437454956902).

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

1212021002010 is a wasteful number, since it uses less digits than its factorization.

1212021002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94397 (or 94390 counting only the distinct ones).

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

Adding to 1212021002010 its reverse (102001202121), we get a palindrome (1314022204131).

The spelling of 1212021002010 in words is "one trillion, two hundred twelve billion, twenty-one million, two thousand, ten".