1021221243334 has 4 divisors (see below), whose sum is σ = 1531831865004. Its totient is φ = 510610621666.

The previous prime is 1021221243313. The next prime is 1021221243337. The reversal of 1021221243334 is 4333421221201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021221243337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255305310832 + ... + 255305310835.

It is an arithmetic number, because the mean of its divisors is an integer number (382957966251).

Almost surely, 2^{1021221243334} is an apocalyptic number.

1021221243334 is a deficient number, since it is larger than the sum of its proper divisors (510610621670).

1021221243334 is an equidigital number, since it uses as much as digits as its factorization.

1021221243334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510610621669.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1021221243334 its reverse (4333421221201), we get a palindrome (5354642464535).

The spelling of 1021221243334 in words is "one trillion, twenty-one billion, two hundred twenty-one million, two hundred forty-three thousand, three hundred thirty-four".