1202001211020 has 24 divisors (see below), whose sum is σ = 3365603391024. Its totient is φ = 320533656256.

The previous prime is 1202001211007. The next prime is 1202001211057. The reversal of 1202001211020 is 201121002021.

It is a super-2 number, since 2×1202001211020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1202001210987 and 1202001211005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10016676699 + ... + 10016676818.

It is an arithmetic number, because the mean of its divisors is an integer number (140233474626).

Almost surely, 2^{1202001211020} is an apocalyptic number.

1202001211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202001211020 is an abundant number, since it is smaller than the sum of its proper divisors (2163602180004).

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

1202001211020 is a wasteful number, since it uses less digits than its factorization.

1202001211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20033353529 (or 20033353527 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1202001211020 its reverse (201121002021), we get a palindrome (1403122213041).

The spelling of 1202001211020 in words is "one trillion, two hundred two billion, one million, two hundred eleven thousand, twenty".