20213000300121 has 64 divisors (see below), whose sum is σ = 29689999718400. Its totient is φ = 12182333700096.

The previous prime is 20213000300113. The next prime is 20213000300137. The reversal of 20213000300121 is 12100300031202.

It is not a de Polignac number, because 20213000300121 - 2³ = 20213000300113 is a prime.

It is a super-2 number, since 2×20213000300121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20213000300121.

It is not an unprimeable number, because it can be changed into a prime (20213000300821) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119048530 + ... + 119218196.

It is an arithmetic number, because the mean of its divisors is an integer number (463906245600).

Almost surely, 2^{20213000300121} is an apocalyptic number.

It is an amenable number.

20213000300121 is a deficient number, since it is larger than the sum of its proper divisors (9476999418279).

20213000300121 is a wasteful number, since it uses less digits than its factorization.

20213000300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170558.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20213000300121 its reverse (12100300031202), we get a palindrome (32313300331323).

The spelling of 20213000300121 in words is "twenty trillion, two hundred thirteen billion, three hundred thousand, one hundred twenty-one".