1022212120 has 32 divisors (see below), whose sum is σ = 2314102320. Its totient is φ = 406373760.

The previous prime is 1022212117. The next prime is 1022212127. The reversal of 1022212120 is 212122201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022212120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022212127) 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, 71871 + ... + 84910.

Almost surely, 2^1022212120 is an apocalyptic number.

1022212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022212120 is an abundant number, since it is smaller than the sum of its proper divisors (1291890200).

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

1022212120 is a wasteful number, since it uses less digits than its factorization.

1022212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156955 (or 156951 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022212120 is about 31972.0521706068. The cubic root of 1022212120 is about 1007.3498868148.

Adding to 1022212120 its reverse (212122201), we get a palindrome (1234334321).

The spelling of 1022212120 in words is "one billion, twenty-two million, two hundred twelve thousand, one hundred twenty".