200101220121 has 16 divisors (see below), whose sum is σ = 297825073920. Its totient is φ = 118453152720.

The previous prime is 200101220101. The next prime is 200101220129. The reversal of 200101220121 is 121022101002.

It is not a de Polignac number, because 200101220121 - 2⁷ = 200101219993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200101220097 and 200101220106.

It is not an unprimeable number, because it can be changed into a prime (200101220129) 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, 70506411 + ... + 70509248.

It is an arithmetic number, because the mean of its divisors is an integer number (18614067120).

Almost surely, 2^200101220121 is an apocalyptic number.

It is an amenable number.

200101220121 is a deficient number, since it is larger than the sum of its proper divisors (97723853799).

200101220121 is a wasteful number, since it uses less digits than its factorization.

200101220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141015716.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200101220121 its reverse (121022101002), we get a palindrome (321123321123).

The spelling of 200101220121 in words is "two hundred billion, one hundred one million, two hundred twenty thousand, one hundred twenty-one".