211221201100010 has 32 divisors (see below), whose sum is σ = 381329807788800. Its totient is φ = 84237008147712.

The previous prime is 211221201099989. The next prime is 211221201100031. The reversal of 211221201100010 is 10001102122112.

It is an interprime number because it is at equal distance from previous prime (211221201099989) and next prime (211221201100031).

It is a super-2 number, since 2×211221201100010² (a number of 29 digits) contains 22 as substring.

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, 503264867 + ... + 503684393.

It is an arithmetic number, because the mean of its divisors is an integer number (11916556493400).

Almost surely, 2^{211221201100010} is an apocalyptic number.

211221201100010 is a deficient number, since it is larger than the sum of its proper divisors (170108606688790).

211221201100010 is a wasteful number, since it uses less digits than its factorization.

211221201100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569270.

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

Adding to 211221201100010 its reverse (10001102122112), we get a palindrome (221222303222122).

The spelling of 211221201100010 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred one million, one hundred thousand, ten".