1001121210122 has 32 divisors (see below), whose sum is σ = 1653398429760. Its totient is φ = 450833713920.

The previous prime is 1001121210107. The next prime is 1001121210149. The reversal of 1001121210122 is 2210121211001.

It is a super-2 number, since 2×1001121210122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001121210097 and 1001121210106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35195618 + ... + 35224050.

It is an arithmetic number, because the mean of its divisors is an integer number (51668700930).

Almost surely, 2^{1001121210122} is an apocalyptic number.

1001121210122 is a deficient number, since it is larger than the sum of its proper divisors (652277219638).

1001121210122 is a wasteful number, since it uses less digits than its factorization.

1001121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43238.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001121210122 its reverse (2210121211001), we get a palindrome (3211242421123).

The spelling of 1001121210122 in words is "one trillion, one billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".