201121100102 has 16 divisors (see below), whose sum is σ = 341987296560. Its totient is φ = 87939590112.

The previous prime is 201121100087. The next prime is 201121100153. The reversal of 201121100102 is 201001121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203563373 + ... + 203564360.

It is an arithmetic number, because the mean of its divisors is an integer number (21374206035).

Almost surely, 2^201121100102 is an apocalyptic number.

201121100102 is a deficient number, since it is larger than the sum of its proper divisors (140866196458).

201121100102 is a wasteful number, since it uses less digits than its factorization.

201121100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407127767.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201121100102 its reverse (201001121102), we get a palindrome (402122221204).

The spelling of 201121100102 in words is "two hundred one billion, one hundred twenty-one million, one hundred thousand, one hundred two".