1020120221012 has 24 divisors (see below), whose sum is σ = 1879889457600. Its totient is φ = 483029536896.

The previous prime is 1020120220963. The next prime is 1020120221083. The reversal of 1020120221012 is 2101220210201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374088 + ... + 2770655.

It is an arithmetic number, because the mean of its divisors is an integer number (78328727400).

Almost surely, 2^{1020120221012} is an apocalyptic number.

It is an amenable number.

1020120221012 is a deficient number, since it is larger than the sum of its proper divisors (859769236588).

1020120221012 is a wasteful number, since it uses less digits than its factorization.

1020120221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147375 (or 5147373 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020120221012 its reverse (2101220210201), we get a palindrome (3121340431213).

The spelling of 1020120221012 in words is "one trillion, twenty billion, one hundred twenty million, two hundred twenty-one thousand, twelve".