21100101122 has 8 divisors (see below), whose sum is σ = 33315949200. Its totient is φ = 9994784724.

The previous prime is 21100101109. The next prime is 21100101131. The reversal of 21100101122 is 22110100112.

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

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, 277632872 + ... + 277632947.

It is an arithmetic number, because the mean of its divisors is an integer number (4164493650).

Almost surely, 2^21100101122 is an apocalyptic number.

21100101122 is a deficient number, since it is larger than the sum of its proper divisors (12215848078).

21100101122 is a wasteful number, since it uses less digits than its factorization.

21100101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555265840.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21100101122 its reverse (22110100112), we get a palindrome (43210201234).

The spelling of 21100101122 in words is "twenty-one billion, one hundred million, one hundred one thousand, one hundred twenty-two".