1402204211221 has 8 divisors (see below), whose sum is σ = 1552508326944. Its totient is φ = 1255705263120.

The previous prime is 1402204211209. The next prime is 1402204211231. The reversal of 1402204211221 is 1221124022041.

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

It is not a de Polignac number, because 1402204211221 - 2¹⁷ = 1402204080149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1402204211192 and 1402204211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402204211231) 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, 951291130 + ... + 951292603.

It is an arithmetic number, because the mean of its divisors is an integer number (194063540868).

Almost surely, 2^{1402204211221} is an apocalyptic number.

1402204211221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1402204211221 is a deficient number, since it is larger than the sum of its proper divisors (150304115723).

1402204211221 is a wasteful number, since it uses less digits than its factorization.

1402204211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902583811.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1402204211221 its reverse (1221124022041), we get a palindrome (2623328233262).

The spelling of 1402204211221 in words is "one trillion, four hundred two billion, two hundred four million, two hundred eleven thousand, two hundred twenty-one".