2001122102 has 32 divisors (see below), whose sum is σ = 3542952960. Its totient is φ = 829920960.

The previous prime is 2001122099. The next prime is 2001122117. The reversal of 2001122102 is 2012211002.

It is a happy number.

It is a super-2 number, since 2×2001122102² = 8008979334225796808, which contains 22 as substring.

It is a congruent number.

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, 41477 + ... + 75647.

It is an arithmetic number, because the mean of its divisors is an integer number (110717280).

Almost surely, 2^2001122102 is an apocalyptic number.

2001122102 is a deficient number, since it is larger than the sum of its proper divisors (1541830858).

2001122102 is a wasteful number, since it uses less digits than its factorization.

2001122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34316.

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

The square root of 2001122102 is about 44733.9032725739. The cubic root of 2001122102 is about 1260.1566324974.

Adding to 2001122102 its reverse (2012211002), we get a palindrome (4013333104).

Subtracting 2001122102 from its reverse (2012211002), we obtain a square (11088900 = 3330²).

The spelling of 2001122102 in words is "two billion, one million, one hundred twenty-two thousand, one hundred two".