1202121010100 has 36 divisors (see below), whose sum is σ = 2692751069568. Its totient is φ = 465337164000.

The previous prime is 1202121010061. The next prime is 1202121010163. The reversal of 1202121010100 is 10101212021.

It is a congruent number.

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, 193887386 + ... + 193893585.

Almost surely, 2^{1202121010100} is an apocalyptic number.

1202121010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202121010100 is an abundant number, since it is smaller than the sum of its proper divisors (1490630059468).

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

1202121010100 is a wasteful number, since it uses less digits than its factorization.

1202121010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387781016 (or 387781009 counting only the distinct ones).

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

Adding to 1202121010100 its reverse (10101212021), we get a palindrome (1212222222121).

The spelling of 1202121010100 in words is "one trillion, two hundred two billion, one hundred twenty-one million, ten thousand, one hundred".