1321212203010 has 48 divisors (see below), whose sum is σ = 3925887690816. Its totient is φ = 301991360544.

The previous prime is 1321212202913. The next prime is 1321212203027. The reversal of 1321212203010 is 103022121231.

1321212203010 is a `hidden beast` number, since 1 + 321 + 21 + 2 + 20 + 301 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048580484 + ... + 1048581743.

It is an arithmetic number, because the mean of its divisors is an integer number (81789326892).

Almost surely, 2^{1321212203010} is an apocalyptic number.

1321212203010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321212203010 is an abundant number, since it is smaller than the sum of its proper divisors (2604675487806).

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

1321212203010 is a wasteful number, since it uses less digits than its factorization.

1321212203010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097162247 (or 2097162244 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1321212203010 its reverse (103022121231), we get a palindrome (1424234324241).

The spelling of 1321212203010 in words is "one trillion, three hundred twenty-one billion, two hundred twelve million, two hundred three thousand, ten".