1421122213021 has 8 divisors (see below), whose sum is σ = 1624147402304. Its totient is φ = 1218098956320.

The previous prime is 1421122213009. The next prime is 1421122213039. The reversal of 1421122213021 is 1203122211241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421122213021 - 2²³ = 1421113824413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421122212983 and 1421122213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421122213081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832566 + ... + 2490088.

It is an arithmetic number, because the mean of its divisors is an integer number (203018425288).

Almost surely, 2^{1421122213021} is an apocalyptic number.

It is an amenable number.

1421122213021 is a deficient number, since it is larger than the sum of its proper divisors (203025189283).

1421122213021 is an equidigital number, since it uses as much as digits as its factorization.

1421122213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966291.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1421122213021 its reverse (1203122211241), we get a palindrome (2624244424262).

The spelling of 1421122213021 in words is "one trillion, four hundred twenty-one billion, one hundred twenty-two million, two hundred thirteen thousand, twenty-one".