1202021212120 has 64 divisors (see below), whose sum is σ = 2732652093600. Its totient is φ = 475816780800.

The previous prime is 1202021212043. The next prime is 1202021212127. The reversal of 1202021212120 is 212121202021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1202021212094 and 1202021212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021212127) 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, 8368347 + ... + 8510773.

Almost surely, 2^{1202021212120} is an apocalyptic number.

1202021212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202021212120 is an abundant number, since it is smaller than the sum of its proper divisors (1530630881480).

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

1202021212120 is a wasteful number, since it uses less digits than its factorization.

1202021212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144628 (or 144624 counting only the distinct ones).

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

Adding to 1202021212120 its reverse (212121202021), we get a palindrome (1414142414141).

It can be divided in two parts, 1202021 and 212120, that added together give a palindrome (1414141).

The spelling of 1202021212120 in words is "one trillion, two hundred two billion, twenty-one million, two hundred twelve thousand, one hundred twenty".