1212021202030 has 32 divisors (see below), whose sum is σ = 2258503741440. Its totient is φ = 467817382560.

The previous prime is 1212021202019. The next prime is 1212021202033. The reversal of 1212021202030 is 302021202121.

It is a happy number.

It is a super-2 number, since 2×1212021202030² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212021201995 and 1212021202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021202033) 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, 5526070 + ... + 5741209.

It is an arithmetic number, because the mean of its divisors is an integer number (70578241920).

Almost surely, 2^{1212021202030} is an apocalyptic number.

1212021202030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212021202030 is a deficient number, since it is larger than the sum of its proper divisors (1046482539410).

1212021202030 is a wasteful number, since it uses less digits than its factorization.

1212021202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11267664.

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

Adding to 1212021202030 its reverse (302021202121), we get a palindrome (1514042404151).

Subtracting from 1212021202030 its reverse (302021202121), we obtain a palindrome (909999999909).

The spelling of 1212021202030 in words is "one trillion, two hundred twelve billion, twenty-one million, two hundred two thousand, thirty".