2111021221002 has 32 divisors (see below), whose sum is σ = 4367113795584. Its totient is φ = 679587644400.

The previous prime is 2111021220989. The next prime is 2111021221019. The reversal of 2111021221002 is 2001221201112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11466288 + ... + 11648939.

It is an arithmetic number, because the mean of its divisors is an integer number (136472306112).

Almost surely, 2^{2111021221002} is an apocalyptic number.

2111021221002 is an abundant number, since it is smaller than the sum of its proper divisors (2256092574582).

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

2111021221002 is a wasteful number, since it uses less digits than its factorization.

2111021221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23115754.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111021221002 its reverse (2001221201112), we get a palindrome (4112242422114).

The spelling of 2111021221002 in words is "two trillion, one hundred eleven billion, twenty-one million, two hundred twenty-one thousand, two".