1020121022 has 8 divisors (see below), whose sum is σ = 1530711000. Its totient is φ = 509884024.

The previous prime is 1020121013. The next prime is 1020121027. The reversal of 1020121022 is 2201210201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020120994 and 1020121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121027) 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, 80897 + ... + 92652.

It is an arithmetic number, because the mean of its divisors is an integer number (191338875).

Almost surely, 2^1020121022 is an apocalyptic number.

1020121022 is a deficient number, since it is larger than the sum of its proper divisors (510589978).

1020121022 is a wasteful number, since it uses less digits than its factorization.

1020121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176490.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020121022 is about 31939.3334620496. Note that the first 3 decimals coincide. The cubic root of 1020121022 is about 1006.6625195849.

Adding to 1020121022 its reverse (2201210201), we get a palindrome (3221331223).

The spelling of 1020121022 in words is "one billion, twenty million, one hundred twenty-one thousand, twenty-two".