1422020021240 has 96 divisors (see below), whose sum is σ = 4008221340480. Its totient is φ = 450045888768.

The previous prime is 1422020021221. The next prime is 1422020021339. The reversal of 1422020021240 is 421200202241.

It is a super-2 number, since 2×1422020021240² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27879152 + ... + 27930111.

It is an arithmetic number, because the mean of its divisors is an integer number (41752305630).

Almost surely, 2^{1422020021240} is an apocalyptic number.

1422020021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422020021240 is an abundant number, since it is smaller than the sum of its proper divisors (2586201319240).

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

1422020021240 is a wasteful number, since it uses less digits than its factorization.

1422020021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55809301 (or 55809290 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1422020021240 its reverse (421200202241), we get a palindrome (1843220223481).

The spelling of 1422020021240 in words is "one trillion, four hundred twenty-two billion, twenty million, twenty-one thousand, two hundred forty".