1022222012 has 12 divisors (see below), whose sum is σ = 2044444080. Its totient is φ = 438095136.

The previous prime is 1022221999. The next prime is 1022222017. The reversal of 1022222012 is 2102222201.

1022222012 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022222017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18253937 + ... + 18253992.

It is an arithmetic number, because the mean of its divisors is an integer number (170370340).

Almost surely, 2^1022222012 is an apocalyptic number.

It is an amenable number.

1022222012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1022222012 is a wasteful number, since it uses less digits than its factorization.

1022222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36507940 (or 36507938 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1022222012 is about 31972.2068678407. The cubic root of 1022222012 is about 1007.3531361968.

Adding to 1022222012 its reverse (2102222201), we get a palindrome (3124444213).

It can be divided in two parts, 102222201 and 2, that multiplied together give a palindrome (204444402).

The spelling of 1022222012 in words is "one billion, twenty-two million, two hundred twenty-two thousand, twelve".