1301621022 has 64 divisors (see below), whose sum is σ = 3119800320. Its totient is φ = 399880800.

The previous prime is 1301621003. The next prime is 1301621047. The reversal of 1301621022 is 2201261031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1301620986 and 1301621004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694747 + ... + 696617.

It is an arithmetic number, because the mean of its divisors is an integer number (48746880).

Almost surely, 2^1301621022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301621022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559900160).

1301621022 is an abundant number, since it is smaller than the sum of its proper divisors (1818179298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301621022 is a wasteful number, since it uses less digits than its factorization.

1301621022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301621022 is about 36077.9852818862. The cubic root of 1301621022 is about 1091.8463284541.

Adding to 1301621022 its reverse (2201261031), we get a palindrome (3502882053).

The spelling of 1301621022 in words is "one billion, three hundred one million, six hundred twenty-one thousand, twenty-two".