1421221431410 has 16 divisors (see below), whose sum is σ = 2790762083712. Its totient is φ = 516807793200.

The previous prime is 1421221431361. The next prime is 1421221431419. The reversal of 1421221431410 is 141341221241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421221431410.

It is not an unprimeable number, because it can be changed into a prime (1421221431419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6460097306 + ... + 6460097525.

It is an arithmetic number, because the mean of its divisors is an integer number (174422630232).

Almost surely, 2^{1421221431410} is an apocalyptic number.

1421221431410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421221431410 is a deficient number, since it is larger than the sum of its proper divisors (1369540652302).

1421221431410 is a wasteful number, since it uses less digits than its factorization.

1421221431410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920194849.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1421221431410 its reverse (141341221241), we get a palindrome (1562562652651).

The spelling of 1421221431410 in words is "one trillion, four hundred twenty-one billion, two hundred twenty-one million, four hundred thirty-one thousand, four hundred ten".