1201202110220 has 144 divisors (see below), whose sum is σ = 3108274912512. Its totient is φ = 387452620800.

The previous prime is 1201202110217. The next prime is 1201202110247. The reversal of 1201202110220 is 220112021021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1201202110195 and 1201202110204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43585445 + ... + 43612995.

It is an arithmetic number, because the mean of its divisors is an integer number (21585242448).

Almost surely, 2^{1201202110220} is an apocalyptic number.

1201202110220 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 1201202110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554137456256).

1201202110220 is an abundant number, since it is smaller than the sum of its proper divisors (1907072802292).

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

1201202110220 is a wasteful number, since it uses less digits than its factorization.

1201202110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30208 (or 30199 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201202110220 its reverse (220112021021), we get a palindrome (1421314131241).

The spelling of 1201202110220 in words is "one trillion, two hundred one billion, two hundred two million, one hundred ten thousand, two hundred twenty".