1022022012 has 96 divisors (see below), whose sum is σ = 2696601600. Its totient is φ = 298468800.

The previous prime is 1022021993. The next prime is 1022022017. The reversal of 1022022012 is 2102202201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022022017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1550539 + ... + 1551197.

It is an arithmetic number, because the mean of its divisors is an integer number (28089600).

Almost surely, 2^1022022012 is an apocalyptic number.

1022022012 is a gapful number since it is divisible by the number (12) 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 1022022012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348300800).

1022022012 is an abundant number, since it is smaller than the sum of its proper divisors (1674579588).

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

1022022012 is a wasteful number, since it uses less digits than its factorization.

1022022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1085 counting only the distinct ones).

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

The square root of 1022022012 is about 31969.0789983071. The cubic root of 1022022012 is about 1007.2874349546.

Adding to 1022022012 its reverse (2102202201), we get a palindrome (3124224213).

It can be divided in two parts, 102202201 and 2, that multiplied together give a palindrome (204404402).

The spelling of 1022022012 in words is "one billion, twenty-two million, twenty-two thousand, twelve".