1201010022100 has 36 divisors (see below), whose sum is σ = 2978504856544. Its totient is φ = 411774864480.

The previous prime is 1201010022089. The next prime is 1201010022109. The reversal of 1201010022100 is 12200101021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010022109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 857863602 + ... + 857865001.

Almost surely, 2^{1201010022100} is an apocalyptic number.

1201010022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201010022100 is an abundant number, since it is smaller than the sum of its proper divisors (1777494834444).

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

1201010022100 is a wasteful number, since it uses less digits than its factorization.

1201010022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715728624 (or 1715728617 counting only the distinct ones).

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

Adding to 1201010022100 its reverse (12200101021), we get a palindrome (1213210123121).

The spelling of 1201010022100 in words is "one trillion, two hundred one billion, ten million, twenty-two thousand, one hundred".