121012010200 has 48 divisors (see below), whose sum is σ = 281582424000. Its totient is φ = 48365320320.

The previous prime is 121012010177. The next prime is 121012010201. The reversal of 121012010200 is 2010210121.

It is a super-2 number, since 2×121012010200² (a number of 23 digits) contains 22 as substring.

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 (121012010201) 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, 360 + ... + 491959.

It is an arithmetic number, because the mean of its divisors is an integer number (5866300500).

Almost surely, 2^121012010200 is an apocalyptic number.

121012010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012010200 is an abundant number, since it is smaller than the sum of its proper divisors (160570413800).

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

121012010200 is a wasteful number, since it uses less digits than its factorization.

121012010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493564 (or 493555 counting only the distinct ones).

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

Adding to 121012010200 its reverse (2010210121), we get a palindrome (123022220321).

The spelling of 121012010200 in words is "one hundred twenty-one billion, twelve million, ten thousand, two hundred".