101220001222121 has 8 divisors (see below), whose sum is σ = 101248220852064. Its totient is φ = 101191783212000.

The previous prime is 101220001222117. The next prime is 101220001222129. The reversal of 101220001222121 is 121222100022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220001222121 - 2² = 101220001222117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101220001222121.

It is not an unprimeable number, because it can be changed into a prime (101220001222129) 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, 130455506 + ... + 131229108.

It is an arithmetic number, because the mean of its divisors is an integer number (12656027606508).

Almost surely, 2^{101220001222121} is an apocalyptic number.

It is an amenable number.

101220001222121 is a deficient number, since it is larger than the sum of its proper divisors (28219629943).

101220001222121 is an equidigital number, since it uses as much as digits as its factorization.

101220001222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809911.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101220001222121 its reverse (121222100022101), we get a palindrome (222442101244222).

The spelling of 101220001222121 in words is "one hundred one trillion, two hundred twenty billion, one million, two hundred twenty-two thousand, one hundred twenty-one".