1202121004 has 24 divisors (see below), whose sum is σ = 2406343968. Its totient is φ = 514744320.

The previous prime is 1202121001. The next prime is 1202121023. The reversal of 1202121004 is 4001212021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1202121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14892 + ... + 51244.

It is an arithmetic number, because the mean of its divisors is an integer number (100264332).

Almost surely, 2^1202121004 is an apocalyptic number.

1202121004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1202121004 is an abundant number, since it is smaller than the sum of its proper divisors (1204222964).

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

1202121004 is a wasteful number, since it uses less digits than its factorization.

1202121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37545 (or 37543 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1202121004 is about 34671.6166914668. The cubic root of 1202121004 is about 1063.2842848635.

Adding to 1202121004 its reverse (4001212021), we get a palindrome (5203333025).

The spelling of 1202121004 in words is "one billion, two hundred two million, one hundred twenty-one thousand, four".