1201203222210 has 160 divisors (see below), whose sum is σ = 3266877735792. Its totient is φ = 316663603200.

The previous prime is 1201203222179. The next prime is 1201203222217. The reversal of 1201203222210 is 122223021021.

1201203222210 is a `hidden beast` number, since 1 + 2 + 0 + 120 + 322 + 221 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 860881498569 + 340321723641 = 927837^2 + 583371^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1201203222217) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 55047222 + ... + 55069038.

Almost surely, 2^{1201203222210} is an apocalyptic number.

1201203222210 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 1201203222210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633438867896).

1201203222210 is an abundant number, since it is smaller than the sum of its proper divisors (2065674513582).

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

1201203222210 is a wasteful number, since it uses less digits than its factorization.

1201203222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22610 (or 22601 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1201203222210 its reverse (122223021021), we get a palindrome (1323426243231).

The spelling of 1201203222210 in words is "one trillion, two hundred one billion, two hundred three million, two hundred twenty-two thousand, two hundred ten".