101000021022121 has 16 divisors (see below), whose sum is σ = 111471927598080. Its totient is φ = 90916242007680.

The previous prime is 101000021022011. The next prime is 101000021022137. The reversal of 101000021022121 is 121220120000101.

It is a cyclic number.

It is not a de Polignac number, because 101000021022121 - 2¹³ = 101000021013929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000021022151) 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, 41123155 + ... + 43509928.

It is an arithmetic number, because the mean of its divisors is an integer number (6966995474880).

Almost surely, 2^{101000021022121} is an apocalyptic number.

It is an amenable number.

101000021022121 is a deficient number, since it is larger than the sum of its proper divisors (10471906575959).

101000021022121 is a wasteful number, since it uses less digits than its factorization.

101000021022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84635376.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101000021022121 its reverse (121220120000101), we get a palindrome (222220141022222).

The spelling of 101000021022121 in words is "one hundred one trillion, twenty-one million, twenty-two thousand, one hundred twenty-one".