12211111022010 has 128 divisors (see below), whose sum is σ = 31435063200000. Its totient is φ = 3026332588032.

The previous prime is 12211111021939. The next prime is 12211111022081. The reversal of 12211111022010 is 1022011111221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12211111021939) and next prime (12211111022081).

It is a super-2 number, since 2×12211111022010² (a number of 27 digits) contains 22 as substring.

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, 307185616 + ... + 307225364.

It is an arithmetic number, because the mean of its divisors is an integer number (245586431250).

Almost surely, 2^{12211111022010} is an apocalyptic number.

12211111022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211111022010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15717531600000).

12211111022010 is an abundant number, since it is smaller than the sum of its proper divisors (19223952177990).

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

12211111022010 is a wasteful number, since it uses less digits than its factorization.

12211111022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50000.

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

Adding to 12211111022010 its reverse (1022011111221), we get a palindrome (13233122133231).

The spelling of 12211111022010 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, twenty-two thousand, ten".