1022021311420 has 12 divisors (see below), whose sum is σ = 2146244754024. Its totient is φ = 408808524560.

The previous prime is 1022021311417. The next prime is 1022021311429. The reversal of 1022021311420 is 241131202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022021311429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25550532766 + ... + 25550532805.

It is an arithmetic number, because the mean of its divisors is an integer number (178853729502).

Almost surely, 2^{1022021311420} is an apocalyptic number.

1022021311420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022021311420 is an abundant number, since it is smaller than the sum of its proper divisors (1124223442604).

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

1022021311420 is a wasteful number, since it uses less digits than its factorization.

1022021311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51101065580 (or 51101065578 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1022021311420 its reverse (241131202201), we get a palindrome (1263152513621).

The spelling of 1022021311420 in words is "one trillion, twenty-two billion, twenty-one million, three hundred eleven thousand, four hundred twenty".