1202011220221 has 48 divisors (see below), whose sum is σ = 1448847267840. Its totient is φ = 993279490560.

The previous prime is 1202011220219. The next prime is 1202011220233. The reversal of 1202011220221 is 1220221102021.

It is a happy number.

It is not a de Polignac number, because 1202011220221 - 2¹ = 1202011220219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202011220195 and 1202011220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202011220261) 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, 808345740 + ... + 808347226.

It is an arithmetic number, because the mean of its divisors is an integer number (30184318080).

Almost surely, 2^{1202011220221} is an apocalyptic number.

It is an amenable number.

1202011220221 is a deficient number, since it is larger than the sum of its proper divisors (246836047619).

1202011220221 is a wasteful number, since it uses less digits than its factorization.

1202011220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194 (or 3187 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1202011220221 its reverse (1220221102021), we get a palindrome (2422232322242).

The spelling of 1202011220221 in words is "one trillion, two hundred two billion, eleven million, two hundred twenty thousand, two hundred twenty-one".