1021020122 has 16 divisors (see below), whose sum is σ = 1574080992. Its totient is φ = 496431600.

The previous prime is 1021020109. The next prime is 1021020149. The reversal of 1021020122 is 2210201201.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 45672.

It is an arithmetic number, because the mean of its divisors is an integer number (98380062).

Almost surely, 2^1021020122 is an apocalyptic number.

1021020122 is a deficient number, since it is larger than the sum of its proper divisors (553060870).

1021020122 is a wasteful number, since it uses less digits than its factorization.

1021020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52573.

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

The square root of 1021020122 is about 31953.4054836100. The cubic root of 1021020122 is about 1006.9581787850.

Adding to 1021020122 its reverse (2210201201), we get a palindrome (3231221323).

The spelling of 1021020122 in words is "one billion, twenty-one million, twenty thousand, one hundred twenty-two".