1020022100212 has 24 divisors (see below), whose sum is σ = 1820347290216. Its totient is φ = 499940108928.

The previous prime is 1020022100189. The next prime is 1020022100239. The reversal of 1020022100212 is 2120012200201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 943964176 + 1019078136036 = 30724^2 + 1009494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020022100192 and 1020022100201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916923 + ... + 2390530.

It is an arithmetic number, because the mean of its divisors is an integer number (75847803759).

Almost surely, 2^{1020022100212} is an apocalyptic number.

It is an amenable number.

1020022100212 is a deficient number, since it is larger than the sum of its proper divisors (800325190004).

1020022100212 is a wasteful number, since it uses less digits than its factorization.

1020022100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308627 (or 4308625 counting only the distinct ones).

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

Adding to 1020022100212 its reverse (2120012200201), we get a palindrome (3140034300413).

The spelling of 1020022100212 in words is "one trillion, twenty billion, twenty-two million, one hundred thousand, two hundred twelve".