100121211101202 has 16 divisors (see below), whose sum is σ = 200242656449472. Its totient is φ = 33373697992560.

The previous prime is 100121211101173. The next prime is 100121211101209. The reversal of 100121211101202 is 202101112121001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100121211101209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3936574 + ... + 14688057.

It is an arithmetic number, because the mean of its divisors is an integer number (12515166028092).

Almost surely, 2^{100121211101202} is an apocalyptic number.

100121211101202 is an abundant number, since it is smaller than the sum of its proper divisors (100121445348270).

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

100121211101202 is a wasteful number, since it uses less digits than its factorization.

100121211101202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19520593.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100121211101202 its reverse (202101112121001), we get a palindrome (302222323222203).

The spelling of 100121211101202 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, one hundred one thousand, two hundred two".