212211112100010 has 128 divisors (see below), whose sum is σ = 523688035622400. Its totient is φ = 55013653094400.

The previous prime is 212211112099949. The next prime is 212211112100021. The reversal of 212211112100010 is 10001211112212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74863350 + ... + 77646270.

It is an arithmetic number, because the mean of its divisors is an integer number (4091312778300).

Almost surely, 2^{212211112100010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212211112100010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261844017811200).

212211112100010 is an abundant number, since it is smaller than the sum of its proper divisors (311476923522390).

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

212211112100010 is a wasteful number, since it uses less digits than its factorization.

212211112100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783424.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212211112100010 its reverse (10001211112212), we get a palindrome (222212323212222).

The spelling of 212211112100010 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twelve million, one hundred thousand, ten".