121001200200010 has 64 divisors (see below), whose sum is σ = 236198846306304. Its totient is φ = 44365016044800.

The previous prime is 121001200199989. The next prime is 121001200200031. The reversal of 121001200200010 is 10002002100121.

It is an interprime number because it is at equal distance from previous prime (121001200199989) and next prime (121001200200031).

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

It is a self number, because there is not a number n which added to its sum of digits gives 121001200200010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18702540 + ... + 24326680.

It is an arithmetic number, because the mean of its divisors is an integer number (3690606973536).

Almost surely, 2^{121001200200010} is an apocalyptic number.

121001200200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001200200010 is a deficient number, since it is larger than the sum of its proper divisors (115197646106294).

121001200200010 is a wasteful number, since it uses less digits than its factorization.

121001200200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625319.

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

Adding to 121001200200010 its reverse (10002002100121), we get a palindrome (131003202300131).

The spelling of 121001200200010 in words is "one hundred twenty-one trillion, one billion, two hundred million, two hundred thousand, ten".