1420065221550 has 48 divisors (see below), whose sum is σ = 3596692868352. Its totient is φ = 370626949600.

The previous prime is 1420065221543. The next prime is 1420065221557. The reversal of 1420065221550 is 551225600241.

It is an interprime number because it is at equal distance from previous prime (1420065221543) and next prime (1420065221557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420065221557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100706796 + ... + 100720895.

It is an arithmetic number, because the mean of its divisors is an integer number (74931101424).

Almost surely, 2^{1420065221550} is an apocalyptic number.

1420065221550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420065221550 is an abundant number, since it is smaller than the sum of its proper divisors (2176627646802).

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

1420065221550 is a wasteful number, since it uses less digits than its factorization.

1420065221550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201427753 (or 201427748 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 1420065221550 in words is "one trillion, four hundred twenty billion, sixty-five million, two hundred twenty-one thousand, five hundred fifty".