102021322 has 8 divisors (see below), whose sum is σ = 164803716. Its totient is φ = 47086752.

The previous prime is 102021299. The next prime is 102021329. The reversal of 102021322 is 223120201.

It can be written as a sum of positive squares in 2 ways, for example, as 100380361 + 1640961 = 10019^2 + 1281^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (102021329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961923 + ... + 1961974.

Almost surely, 2^102021322 is an apocalyptic number.

102021322 is a deficient number, since it is larger than the sum of its proper divisors (62782394).

102021322 is a wasteful number, since it uses less digits than its factorization.

102021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923912.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102021322 is about 10100.5604794982. The cubic root of 102021322 is about 467.2654272317.

Adding to 102021322 its reverse (223120201), we get a palindrome (325141523).

The spelling of 102021322 in words is "one hundred two million, twenty-one thousand, three hundred twenty-two".