1020000010122 has 48 divisors (see below), whose sum is σ = 2241597295080. Its totient is φ = 335170555776.

The previous prime is 1020000010103. The next prime is 1020000010229. The reversal of 1020000010122 is 2210100000201.

It can be written as a sum of positive squares in 4 ways, for example, as 1010851278921 + 9148731201 = 1005411^2 + 95649^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 932973 + ... + 1706000.

Almost surely, 2^{1020000010122} is an apocalyptic number.

1020000010122 is an abundant number, since it is smaller than the sum of its proper divisors (1221597284958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020000010122 is a wasteful number, since it uses less digits than its factorization.

1020000010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639287 (or 2639284 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020000010122 its reverse (2210100000201), we get a palindrome (3230100010323).

The spelling of 1020000010122 in words is "one trillion, twenty billion, ten thousand, one hundred twenty-two".