100421261122 has 64 divisors (see below), whose sum is σ = 189307931904. Its totient is φ = 38896174080.

The previous prime is 100421261099. The next prime is 100421261137. The reversal of 100421261122 is 221162124001.

It is a junction number, because it is equal to n+sod(n) for n = 100421261093 and 100421261102.

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, 1792597 + ... + 1847767.

It is an arithmetic number, because the mean of its divisors is an integer number (2957936436).

Almost surely, 2^100421261122 is an apocalyptic number.

100421261122 is a deficient number, since it is larger than the sum of its proper divisors (88886670782).

100421261122 is a wasteful number, since it uses less digits than its factorization.

100421261122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55403.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 100421261122 its reverse (221162124001), we get a palindrome (321583385123).

The spelling of 100421261122 in words is "one hundred billion, four hundred twenty-one million, two hundred sixty-one thousand, one hundred twenty-two".