1020002010122 has 4 divisors (see below), whose sum is σ = 1530003015186. Its totient is φ = 510001005060.

The previous prime is 1020002010107. The next prime is 1020002010149. The reversal of 1020002010122 is 2210102000201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1011571281361 + 8430728761 = 1005769^2 + 91819^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255000502529 + ... + 255000502532.

Almost surely, 2^{1020002010122} is an apocalyptic number.

1020002010122 is a deficient number, since it is larger than the sum of its proper divisors (510001005064).

1020002010122 is an equidigital number, since it uses as much as digits as its factorization.

1020002010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510001005063.

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

Adding to 1020002010122 its reverse (2210102000201), we get a palindrome (3230104010323).

The spelling of 1020002010122 in words is "one trillion, twenty billion, two million, ten thousand, one hundred twenty-two".