1202221440421 has 8 divisors (see below), whose sum is σ = 1207014619104. Its totient is φ = 1197437131440.

The previous prime is 1202221440349. The next prime is 1202221440457. The reversal of 1202221440421 is 1240441222021.

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 1202221440421 - 2¹¹ = 1202221438373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202221440491) 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, 1945735 + ... + 2488036.

It is an arithmetic number, because the mean of its divisors is an integer number (150876827388).

Almost surely, 2^{1202221440421} is an apocalyptic number.

It is an amenable number.

1202221440421 is a deficient number, since it is larger than the sum of its proper divisors (4793178683).

1202221440421 is an equidigital number, since it uses as much as digits as its factorization.

1202221440421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434851.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1202221440421 its reverse (1240441222021), we get a palindrome (2442662662442).

The spelling of 1202221440421 in words is "one trillion, two hundred two billion, two hundred twenty-one million, four hundred forty thousand, four hundred twenty-one".