121221020200062 has 32 divisors (see below), whose sum is σ = 248562051895584. Its totient is φ = 39388646016000.

The previous prime is 121221020200061. The next prime is 121221020200069. The reversal of 121221020200062 is 260002020122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221020200061) 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, 204853753 + ... + 205444644.

It is an arithmetic number, because the mean of its divisors is an integer number (7767564121737).

Almost surely, 2^{121221020200062} is an apocalyptic number.

121221020200062 is an abundant number, since it is smaller than the sum of its proper divisors (127341031695522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121221020200062 is a wasteful number, since it uses less digits than its factorization.

121221020200062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410299644.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121221020200062 its reverse (260002020122121), we get a palindrome (381223040322183).

The spelling of 121221020200062 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred thousand, sixty-two".