201101012102 has 4 divisors (see below), whose sum is σ = 301651518156. Its totient is φ = 100550506050.

The previous prime is 201101012041. The next prime is 201101012153. The reversal of 201101012102 is 201210101102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201210101102 = 2 ⋅100605050551.

It is a super-4 number, since 4×201101012102⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275253024 + ... + 50275253027.

It is an arithmetic number, because the mean of its divisors is an integer number (75412879539).

Almost surely, 2^201101012102 is an apocalyptic number.

201101012102 is a deficient number, since it is larger than the sum of its proper divisors (100550506054).

201101012102 is a wasteful number, since it uses less digits than its factorization.

201101012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100550506053.

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

Adding to 201101012102 its reverse (201210101102), we get a palindrome (402311113204).

The spelling of 201101012102 in words is "two hundred one billion, one hundred one million, twelve thousand, one hundred two".