21111010211002 has 8 divisors (see below), whose sum is σ = 33043320330336. Its totient is φ = 10096570100892.

The previous prime is 21111010210999. The next prime is 21111010211041. The reversal of 21111010211002 is 20011201011112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229467502248 + ... + 229467502339.

It is an arithmetic number, because the mean of its divisors is an integer number (4130415041292).

Almost surely, 2^{21111010211002} is an apocalyptic number.

21111010211002 is a deficient number, since it is larger than the sum of its proper divisors (11932310119334).

21111010211002 is a wasteful number, since it uses less digits than its factorization.

21111010211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458935004612.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21111010211002 its reverse (20011201011112), we get a palindrome (41122211222114).

The spelling of 21111010211002 in words is "twenty-one trillion, one hundred eleven billion, ten million, two hundred eleven thousand, two".