2111002021002 has 96 divisors (see below), whose sum is σ = 5099989910400. Its totient is φ = 580130527872.

The previous prime is 2111002020991. The next prime is 2111002021021. The reversal of 2111002021002 is 2001202001112.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1771624 + ... + 2713052.

It is an arithmetic number, because the mean of its divisors is an integer number (53124894900).

Almost surely, 2^{2111002021002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111002021002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549994955200).

2111002021002 is an abundant number, since it is smaller than the sum of its proper divisors (2988987889398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111002021002 is a wasteful number, since it uses less digits than its factorization.

2111002021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941740 (or 941733 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2111002021002 its reverse (2001202001112), we get a palindrome (4112204022114).

The spelling of 2111002021002 in words is "two trillion, one hundred eleven billion, two million, twenty-one thousand, two".