200021211010142 has 4 divisors (see below), whose sum is σ = 300031816515216. Its totient is φ = 100010605505070.

The previous prime is 200021211010141. The next prime is 200021211010157. The reversal of 200021211010142 is 241010112120002.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 200021211010142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021211010141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005302752534 + ... + 50005302752537.

It is an arithmetic number, because the mean of its divisors is an integer number (75007954128804).

Almost surely, 2^{200021211010142} is an apocalyptic number.

200021211010142 is a deficient number, since it is larger than the sum of its proper divisors (100010605505074).

200021211010142 is a wasteful number, since it uses less digits than its factorization.

200021211010142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100010605505073.

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

Adding to 200021211010142 its reverse (241010112120002), we get a palindrome (441031323130144).

The spelling of 200021211010142 in words is "two hundred trillion, twenty-one billion, two hundred eleven million, ten thousand, one hundred forty-two".