1221020140314 has 64 divisors (see below), whose sum is σ = 2645182915200. Its totient is φ = 373514698752.

The previous prime is 1221020140259. The next prime is 1221020140337. The reversal of 1221020140314 is 4130410201221.

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, 91709722 + ... + 91723034.

It is an arithmetic number, because the mean of its divisors is an integer number (41330983050).

Almost surely, 2^{1221020140314} is an apocalyptic number.

1221020140314 is an abundant number, since it is smaller than the sum of its proper divisors (1424162774886).

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

1221020140314 is a wasteful number, since it uses less digits than its factorization.

1221020140314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20079.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1221020140314 its reverse (4130410201221), we get a palindrome (5351430341535).

The spelling of 1221020140314 in words is "one trillion, two hundred twenty-one billion, twenty million, one hundred forty thousand, three hundred fourteen".