1020120021222 has 16 divisors (see below), whose sum is σ = 2041166187840. Its totient is φ = 339885649512.

The previous prime is 1020120021199. The next prime is 1020120021247. The reversal of 1020120021222 is 2221200210201.

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, 38575072 + ... + 38601507.

It is an arithmetic number, because the mean of its divisors is an integer number (127572886740).

Almost surely, 2^{1020120021222} is an apocalyptic number.

1020120021222 is an abundant number, since it is smaller than the sum of its proper divisors (1021046166618).

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

1020120021222 is a wasteful number, since it uses less digits than its factorization.

1020120021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77178787.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020120021222 its reverse (2221200210201), we get a palindrome (3241320231423).

The spelling of 1020120021222 in words is "one trillion, twenty billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".