122220210202220 has 96 divisors (see below), whose sum is σ = 278676690044928. Its totient is φ = 44756930598912.

The previous prime is 122220210202219. The next prime is 122220210202253. The reversal of 122220210202220 is 22202012022221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122220210202192 and 122220210202201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96881342 + ... + 98134778.

It is an arithmetic number, because the mean of its divisors is an integer number (2902882187968).

Almost surely, 2^{122220210202220} is an apocalyptic number.

122220210202220 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 122220210202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139338345022464).

122220210202220 is an abundant number, since it is smaller than the sum of its proper divisors (156456479842708).

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

122220210202220 is a wasteful number, since it uses less digits than its factorization.

122220210202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256539 (or 1256537 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122220210202220 its reverse (22202012022221), we get a palindrome (144422222224441).

The spelling of 122220210202220 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred ten million, two hundred two thousand, two hundred twenty".