1220211002022 has 48 divisors (see below), whose sum is σ = 2605448582400. Its totient is φ = 380887512192.

The previous prime is 1220211001861. The next prime is 1220211002029. The reversal of 1220211002022 is 2202001120221.

It is a junction number, because it is equal to n+sod(n) for n = 1220211001992 and 1220211002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220211002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1423018 + ... + 2113149.

It is an arithmetic number, because the mean of its divisors is an integer number (54280178800).

Almost surely, 2^{1220211002022} is an apocalyptic number.

1220211002022 is an abundant number, since it is smaller than the sum of its proper divisors (1385237580378).

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

1220211002022 is a wasteful number, since it uses less digits than its factorization.

1220211002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536405 (or 3536388 counting only the distinct ones).

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

Adding to 1220211002022 its reverse (2202001120221), we get a palindrome (3422212122243).

The spelling of 1220211002022 in words is "one trillion, two hundred twenty billion, two hundred eleven million, two thousand, twenty-two".