200221122002121 has 48 divisors (see below), whose sum is σ = 329518958483520. Its totient is φ = 116065381887360.

The previous prime is 200221122002119. The next prime is 200221122002179. The reversal of 200221122002121 is 121200221122002.

It is a happy number.

200221122002121 is a `hidden beast` number, since 20 + 0 + 2 + 211 + 220 + 0 + 212 + 1 = 666.

It is not a de Polignac number, because 200221122002121 - 2¹ = 200221122002119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200221122002094 and 200221122002103.

It is not an unprimeable number, because it can be changed into a prime (200221122002221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 463007790 + ... + 463440023.

It is an arithmetic number, because the mean of its divisors is an integer number (6864978301740).

Almost surely, 2^{200221122002121} is an apocalyptic number.

It is an amenable number.

200221122002121 is a deficient number, since it is larger than the sum of its proper divisors (129297836481399).

200221122002121 is a wasteful number, since it uses less digits than its factorization.

200221122002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926447926 (or 926447923 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200221122002121 its reverse (121200221122002), we get a palindrome (321421343124123).

It can be divided in two parts, 200221122002 and 121, that multiplied together give a palindrome (24226755762242).

The spelling of 200221122002121 in words is "two hundred trillion, two hundred twenty-one billion, one hundred twenty-two million, two thousand, one hundred twenty-one".