1220120022 has 32 divisors (see below), whose sum is σ = 2818675584. Its totient is φ = 347984000.

The previous prime is 1220120021. The next prime is 1220120023. The reversal of 1220120022 is 2200210221.

It is an interprime number because it is at equal distance from previous prime (1220120021) and next prime (1220120023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220120021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542604 + ... + 544847.

It is an arithmetic number, because the mean of its divisors is an integer number (88083612).

Almost surely, 2^1220120022 is an apocalyptic number.

1220120022 is an abundant number, since it is smaller than the sum of its proper divisors (1598555562).

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

1220120022 is a wasteful number, since it uses less digits than its factorization.

1220120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087484.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1220120022 is about 34930.2164608237. The cubic root of 1220120022 is about 1068.5647691844.

Adding to 1220120022 its reverse (2200210221), we get a palindrome (3420330243).

It can be divided in two parts, 12201 and 20022, that added together give a palindrome (32223).

The spelling of 1220120022 in words is "one billion, two hundred twenty million, one hundred twenty thousand, twenty-two".