100121210001210 has 32 divisors (see below), whose sum is σ = 240451849123200. Its totient is φ = 26681106542528.

The previous prime is 100121210001193. The next prime is 100121210001257. The reversal of 100121210001210 is 12100012121001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117628910 + ... + 1117718489.

It is an arithmetic number, because the mean of its divisors is an integer number (7514120285100).

Almost surely, 2^{100121210001210} is an apocalyptic number.

100121210001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121210001210 is an abundant number, since it is smaller than the sum of its proper divisors (140330639121990).

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

100121210001210 is a wasteful number, since it uses less digits than its factorization.

100121210001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235348902.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100121210001210 its reverse (12100012121001), we get a palindrome (112221222122211).

The spelling of 100121210001210 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, one thousand, two hundred ten".