1000122101012 has 6 divisors (see below), whose sum is σ = 1750213676778. Its totient is φ = 500061050504.

The previous prime is 1000122101003. The next prime is 1000122101021. The reversal of 1000122101012 is 2101012210001.

It is an interprime number because it is at equal distance from previous prime (1000122101003) and next prime (1000122101021).

It can be written as a sum of positive squares in only one way, i.e., 997513547536 + 2608553476 = 998756^2 + 51074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000122100984 and 1000122101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125015262623 + ... + 125015262630.

It is an arithmetic number, because the mean of its divisors is an integer number (291702279463).

Almost surely, 2^{1000122101012} is an apocalyptic number.

It is an amenable number.

1000122101012 is a deficient number, since it is larger than the sum of its proper divisors (750091575766).

1000122101012 is a wasteful number, since it uses less digits than its factorization.

1000122101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250030525257 (or 250030525255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000122101012 its reverse (2101012210001), we get a palindrome (3101134311013).

The spelling of 1000122101012 in words is "one trillion, one hundred twenty-two million, one hundred one thousand, twelve".