20000211000121 has 6 divisors (see below), whose sum is σ = 21983703000266. Its totient is φ = 18182010000000.

The previous prime is 20000211000101. The next prime is 20000211000127. The reversal of 20000211000121 is 12100011200002.

It can be written as a sum of positive squares in only one way, i.e., 17373591130896 + 2626619869225 = 4168164^2 + 1620685^2 .

It is not a de Polignac number, because 20000211000121 - 2⁵ = 20000211000089 is a prime.

It is a super-2 number, since 2×20000211000121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000211000098 and 20000211000107.

It is not an unprimeable number, because it can be changed into a prime (20000211000127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82645499880 + ... + 82645500121.

Almost surely, 2^{20000211000121} is an apocalyptic number.

It is an amenable number.

20000211000121 is a deficient number, since it is larger than the sum of its proper divisors (1983492000145).

20000211000121 is a wasteful number, since it uses less digits than its factorization.

20000211000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165291000023 (or 165291000012 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20000211000121 its reverse (12100011200002), we get a palindrome (32100222200123).

The spelling of 20000211000121 in words is "twenty trillion, two hundred eleven million, one hundred twenty-one", and thus it is an aban number.