1001210121002 has 16 divisors (see below), whose sum is σ = 1848387916032. Its totient is φ = 396083124720.

The previous prime is 1001210120957. The next prime is 1001210121007. The reversal of 1001210121002 is 2001210121001.

It is not an unprimeable number, because it can be changed into a prime (1001210121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2750577074 + ... + 2750577437.

It is an arithmetic number, because the mean of its divisors is an integer number (115524244752).

Almost surely, 2^{1001210121002} is an apocalyptic number.

1001210121002 is a deficient number, since it is larger than the sum of its proper divisors (847177795030).

1001210121002 is a wasteful number, since it uses less digits than its factorization.

1001210121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501154533.

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

Adding to 1001210121002 its reverse (2001210121001), we get a palindrome (3002420242003).

Subtracting 1001210121002 from its reverse (2001210121001), we obtain a palindrome (999999999999).

The spelling of 1001210121002 in words is "one trillion, one billion, two hundred ten million, one hundred twenty-one thousand, two".