102400022 has 8 divisors (see below), whose sum is σ = 153672672. Its totient is φ = 51175800.

The previous prime is 102400021. The next prime is 102400031. The reversal of 102400022 is 220004201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102399976 and 102400012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102400021) 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, 6254 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (19209084).

Almost surely, 2^102400022 is an apocalyptic number.

102400022 is a deficient number, since it is larger than the sum of its proper divisors (51272650).

102400022 is a wasteful number, since it uses less digits than its factorization.

102400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24214.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102400022 is about 10119.2895995717. The cubic root of 102400022 is about 467.8428716184.

Adding to 102400022 its reverse (220004201), we get a palindrome (322404223).

The spelling of 102400022 in words is "one hundred two million, four hundred thousand, twenty-two".