100021023122 has 8 divisors (see below), whose sum is σ = 150054038076. Its totient is φ = 50003010432.

The previous prime is 100021023107. The next prime is 100021023133. The reversal of 100021023122 is 221320120001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72802292761 + 27218730361 = 269819^2 + 164981^2 .

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 = 100021023097 and 100021023106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3733883 + ... + 3760574.

Almost surely, 2^100021023122 is an apocalyptic number.

100021023122 is a deficient number, since it is larger than the sum of its proper divisors (50033014954).

100021023122 is an equidigital number, since it uses as much as digits as its factorization.

100021023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501132.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100021023122 its reverse (221320120001), we get a palindrome (321341143123).

The spelling of 100021023122 in words is "one hundred billion, twenty-one million, twenty-three thousand, one hundred twenty-two".