1220201310220 has 24 divisors (see below), whose sum is σ = 2713153502304. Its totient is φ = 459369904896.

The previous prime is 1220201310157. The next prime is 1220201310227. The reversal of 1220201310220 is 220131020221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220201310194 and 1220201310203.

It is not an unprimeable number, because it can be changed into a prime (1220201310227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794413352 + ... + 1794414031.

It is an arithmetic number, because the mean of its divisors is an integer number (113048062596).

Almost surely, 2^{1220201310220} is an apocalyptic number.

1220201310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220201310220 is an abundant number, since it is smaller than the sum of its proper divisors (1492952192084).

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

1220201310220 is a wasteful number, since it uses less digits than its factorization.

1220201310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588827409 (or 3588827407 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220201310220 its reverse (220131020221), we get a palindrome (1440332330441).

The spelling of 1220201310220 in words is "one trillion, two hundred twenty billion, two hundred one million, three hundred ten thousand, two hundred twenty".