100122222 has 32 divisors (see below), whose sum is σ = 206272512. Its totient is φ = 32374944.

The previous prime is 100122221. The next prime is 100122223. The reversal of 100122222 is 222221001.

It is an interprime number because it is at equal distance from previous prime (100122221) and next prime (100122223).

It is a junction number, because it is equal to n+sod(n) for n = 100122198 and 100122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134383 + ... + 135125.

It is an arithmetic number, because the mean of its divisors is an integer number (6446016).

Almost surely, 2^100122222 is an apocalyptic number.

100122222 is an abundant number, since it is smaller than the sum of its proper divisors (106150290).

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

100122222 is a wasteful number, since it uses less digits than its factorization.

100122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 100122222 is about 10006.1092338631. The cubic root of 100122222 is about 464.3479077958.

Adding to 100122222 its reverse (222221001), we get a palindrome (322343223).

It can be divided in two parts, 1001 and 22222, that multiplied together give a palindrome (22244222).

The spelling of 100122222 in words is "one hundred million, one hundred twenty-two thousand, two hundred twenty-two".