201021100212002 has 144 divisors (see below), whose sum is σ = 385940862736128. Its totient is φ = 78200613066240.

The previous prime is 201021100211843. The next prime is 201021100212013. The reversal of 201021100212002 is 200212001120102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 256858013 + ... + 257639439.

It is an arithmetic number, because the mean of its divisors is an integer number (2680144880112).

Almost surely, 2^{201021100212002} is an apocalyptic number.

201021100212002 is a deficient number, since it is larger than the sum of its proper divisors (184919762524126).

201021100212002 is a wasteful number, since it uses less digits than its factorization.

201021100212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781801 (or 781777 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201021100212002 its reverse (200212001120102), we get a palindrome (401233101332104).

The spelling of 201021100212002 in words is "two hundred one trillion, twenty-one billion, one hundred million, two hundred twelve thousand, two".