1321202211010 has 64 divisors (see below), whose sum is σ = 2622473013888. Its totient is φ = 475240000000.

The previous prime is 1321202211001. The next prime is 1321202211037. The reversal of 1321202211010 is 101122021231.

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, 12066510 + ... + 12175510.

It is an arithmetic number, because the mean of its divisors is an integer number (40976140842).

Almost surely, 2^{1321202211010} is an apocalyptic number.

1321202211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321202211010 is a deficient number, since it is larger than the sum of its proper divisors (1301270802878).

1321202211010 is a wasteful number, since it uses less digits than its factorization.

1321202211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110211.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1321202211010 its reverse (101122021231), we get a palindrome (1422324232241).

It can be divided in two parts, 132120221 and 1010, that added together give a palindrome (132121231).

The spelling of 1321202211010 in words is "one trillion, three hundred twenty-one billion, two hundred two million, two hundred eleven thousand, ten".