1012020121222 has 128 divisors (see below), whose sum is σ = 1849399050240. Its totient is φ = 409964544000.

The previous prime is 1012020121219. The next prime is 1012020121223. The reversal of 1012020121222 is 2221210202101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012020121196 and 1012020121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012020121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100085947 + ... + 100096057.

It is an arithmetic number, because the mean of its divisors is an integer number (14448430080).

Almost surely, 2^{1012020121222} is an apocalyptic number.

1012020121222 is a deficient number, since it is larger than the sum of its proper divisors (837378929018).

1012020121222 is a wasteful number, since it uses less digits than its factorization.

1012020121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012020121222 its reverse (2221210202101), we get a palindrome (3233230323323).

The spelling of 1012020121222 in words is "one trillion, twelve billion, twenty million, one hundred twenty-one thousand, two hundred twenty-two".