10100202122121 has 16 divisors (see below), whose sum is σ = 13831017616704. Its totient is φ = 6551430254784.

The previous prime is 10100202122069. The next prime is 10100202122141. The reversal of 10100202122121 is 12122120200101.

It is not a de Polignac number, because 10100202122121 - 2¹³ = 10100202113929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10100202122121.

It is not an unprimeable number, because it can be changed into a prime (10100202122141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17639490 + ... + 18203076.

It is an arithmetic number, because the mean of its divisors is an integer number (864438601044).

Almost surely, 2^{10100202122121} is an apocalyptic number.

It is an amenable number.

10100202122121 is a deficient number, since it is larger than the sum of its proper divisors (3730815494583).

10100202122121 is a wasteful number, since it uses less digits than its factorization.

10100202122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725080.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10100202122121 its reverse (12122120200101), we get a palindrome (22222322322222).

The spelling of 10100202122121 in words is "ten trillion, one hundred billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-one".