1361622330021 has 8 divisors (see below), whose sum is σ = 1911048884320. Its totient is φ = 859971997872.

The previous prime is 1361622330017. The next prime is 1361622330023. The reversal of 1361622330021 is 1200332261631.

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

It is not a de Polignac number, because 1361622330021 - 2² = 1361622330017 is a prime.

It is a super-2 number, since 2×1361622330021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361622330023) 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, 11944055470 + ... + 11944055583.

It is an arithmetic number, because the mean of its divisors is an integer number (238881110540).

Almost surely, 2^{1361622330021} is an apocalyptic number.

It is an amenable number.

1361622330021 is a deficient number, since it is larger than the sum of its proper divisors (549426554299).

1361622330021 is a wasteful number, since it uses less digits than its factorization.

1361622330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23888111075.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 1361622330021 its reverse (1200332261631), we get a palindrome (2561954591652).

The spelling of 1361622330021 in words is "one trillion, three hundred sixty-one billion, six hundred twenty-two million, three hundred thirty thousand, twenty-one".