21110101222010 has 32 divisors (see below), whose sum is σ = 39753157957632. Its totient is φ = 8062809800320.

The previous prime is 21110101221983. The next prime is 21110101222031. The reversal of 21110101222010 is 1022210101112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547725962 + ... + 547764501.

It is an arithmetic number, because the mean of its divisors is an integer number (1242286186176).

Almost surely, 2^{21110101222010} is an apocalyptic number.

21110101222010 is a deficient number, since it is larger than the sum of its proper divisors (18643056735622).

21110101222010 is a wasteful number, since it uses less digits than its factorization.

21110101222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095490558.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21110101222010 its reverse (1022210101112), we get a palindrome (22132311323122).

The spelling of 21110101222010 in words is "twenty-one trillion, one hundred ten billion, one hundred one million, two hundred twenty-two thousand, ten".