21011101201002 has 32 divisors (see below), whose sum is σ = 47835550563840. Its totient is φ = 6090174260720.

The previous prime is 21011101200997. The next prime is 21011101201021. The reversal of 21011101201002 is 20010210111012.

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, 6920651052 + ... + 6920654087.

It is an arithmetic number, because the mean of its divisors is an integer number (1494860955120).

Almost surely, 2^{21011101201002} is an apocalyptic number.

21011101201002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21011101201002 is an abundant number, since it is smaller than the sum of its proper divisors (26824449362838).

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

21011101201002 is a wasteful number, since it uses less digits than its factorization.

21011101201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13841305178.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21011101201002 its reverse (20010210111012), we get a palindrome (41021311312014).

The spelling of 21011101201002 in words is "twenty-one trillion, eleven billion, one hundred one million, two hundred one thousand, two".