1001202012122 has 32 divisors (see below), whose sum is σ = 1621733363712. Its totient is φ = 460834570944.

The previous prime is 1001202012121. The next prime is 1001202012127. The reversal of 1001202012122 is 2212102021001.

It is a junction number, because it is equal to n+sod(n) for n = 1001202012097 and 1001202012106.

It is not an unprimeable number, because it can be changed into a prime (1001202012121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87184193 + ... + 87195675.

It is an arithmetic number, because the mean of its divisors is an integer number (50679167616).

Almost surely, 2^{1001202012122} is an apocalyptic number.

1001202012122 is a deficient number, since it is larger than the sum of its proper divisors (620531351590).

1001202012122 is a wasteful number, since it uses less digits than its factorization.

1001202012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20342.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001202012122 its reverse (2212102021001), we get a palindrome (3213304033123).

The spelling of 1001202012122 in words is "one trillion, one billion, two hundred two million, twelve thousand, one hundred twenty-two".