1220140523321 has 16 divisors (see below), whose sum is σ = 1285803149760. Its totient is φ = 1156137702720.

The previous prime is 1220140523233. The next prime is 1220140523383. The reversal of 1220140523321 is 1233250410221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220140523321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220140523221) 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, 5186 + ... + 1562148.

It is an arithmetic number, because the mean of its divisors is an integer number (80362696860).

Almost surely, 2^{1220140523321} is an apocalyptic number.

It is an amenable number.

1220140523321 is a deficient number, since it is larger than the sum of its proper divisors (65662626439).

1220140523321 is a wasteful number, since it uses less digits than its factorization.

1220140523321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557496.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1220140523321 its reverse (1233250410221), we get a palindrome (2453390933542).

The spelling of 1220140523321 in words is "one trillion, two hundred twenty billion, one hundred forty million, five hundred twenty-three thousand, three hundred twenty-one".