1210222210200 has 384 divisors, whose sum is σ = 3980729145600. Its totient is φ = 303305195520.

The previous prime is 1210222210159. The next prime is 1210222210229. The reversal of 1210222210200 is 20122220121.

It is a Cunningham number, because it is equal to 1100101²-1.

It is a super-2 number, since 2×1210222210200² (a number of 25 digits) contains 22 as substring.

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 1210222210200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1238712112 + ... + 1238713088.

It is an arithmetic number, because the mean of its divisors is an integer number (10366482150).

Almost surely, 2^{1210222210200} is an apocalyptic number.

1210222210200 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 1210222210200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990364572800).

1210222210200 is an abundant number, since it is smaller than the sum of its proper divisors (2770506935400).

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

1210222210200 is a wasteful number, since it uses less digits than its factorization.

1210222210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1210222210200 its reverse (20122220121), we get a palindrome (1230344430321).

The spelling of 1210222210200 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred ten thousand, two hundred".