20012010201100 has 36 divisors (see below), whose sum is σ = 43427589862608. Its totient is φ = 8004522472000.

The previous prime is 20012010201013. The next prime is 20012010201179. The reversal of 20012010201100 is 110201021002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 651736 + ... + 6359935.

It is an arithmetic number, because the mean of its divisors is an integer number (1206321940628).

Almost surely, 2^{20012010201100} is an apocalyptic number.

20012010201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012010201100 is an abundant number, since it is smaller than the sum of its proper divisors (23415579661508).

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

20012010201100 is a wasteful number, since it uses less digits than its factorization.

20012010201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040226 (or 7040219 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20012010201100 its reverse (110201021002), we get a palindrome (20122211222102).

The spelling of 20012010201100 in words is "twenty trillion, twelve billion, ten million, two hundred one thousand, one hundred".