1222101302100 has 432 divisors, whose sum is σ = 4142494863360. Its totient is φ = 277360070400.

The previous prime is 1222101302041. The next prime is 1222101302101. The reversal of 1222101302100 is 12031012221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1222101302100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222101302101) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1936768785 + ... + 1936769415.

It is an arithmetic number, because the mean of its divisors is an integer number (9589108480).

Almost surely, 2^{1222101302100} is an apocalyptic number.

1222101302100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222101302100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071247431680).

1222101302100 is an abundant number, since it is smaller than the sum of its proper divisors (2920393561260).

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

1222101302100 is a wasteful number, since it uses less digits than its factorization.

1222101302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1222101302100 its reverse (12031012221), we get a palindrome (1234132314321).

The spelling of 1222101302100 in words is "one trillion, two hundred twenty-two billion, one hundred one million, three hundred two thousand, one hundred".