100121123111202 has 24 divisors (see below), whose sum is σ = 216932502758400. Its totient is φ = 33373184213880.

The previous prime is 100121123111201. The next prime is 100121123111239. The reversal of 100121123111202 is 202111321121001.

It is a happy number.

100121123111202 is a `hidden beast` number, since 10 + 0 + 1 + 211 + 231 + 11 + 202 = 666.

It is a super-3 number, since 3×100121123111202³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100121123111201) 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, 42443874 + ... + 44740637.

It is an arithmetic number, because the mean of its divisors is an integer number (9038854281600).

Almost surely, 2^{100121123111202} is an apocalyptic number.

100121123111202 is an abundant number, since it is smaller than the sum of its proper divisors (116811379647198).

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

100121123111202 is a wasteful number, since it uses less digits than its factorization.

100121123111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87248318 (or 87248315 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 100121123111202 its reverse (202111321121001), we get a palindrome (302232444232203).

The spelling of 100121123111202 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred eleven thousand, two hundred two".