1020022222212 has 288 divisors, whose sum is σ = 3121933860864. Its totient is φ = 274698950400.

The previous prime is 1020022222171. The next prime is 1020022222217. The reversal of 1020022222212 is 2122222200201.

1020022222212 is a `hidden beast` number, since 10 + 200 + 22 + 222 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020022222217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 46025038 + ... + 46047194.

It is an arithmetic number, because the mean of its divisors is an integer number (10840048128).

Almost surely, 2^{1020022222212} is an apocalyptic number.

1020022222212 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 1020022222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560966930432).

1020022222212 is an abundant number, since it is smaller than the sum of its proper divisors (2101911638652).

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

1020022222212 is a wasteful number, since it uses less digits than its factorization.

1020022222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22359 (or 22354 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1020022222212 its reverse (2122222200201), we get a palindrome (3142244422413).

The spelling of 1020022222212 in words is "one trillion, twenty billion, twenty-two million, two hundred twenty-two thousand, two hundred twelve".