1202120010 has 192 divisors, whose sum is σ = 3951747072. Its totient is φ = 246716928.

The previous prime is 1202119999. The next prime is 1202120021. The reversal of 1202120010 is 100212021.

It is an interprime number because it is at equal distance from previous prime (1202119999) and next prime (1202120021).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1202119974 and 1202120001.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 301047 + ... + 305013.

It is an arithmetic number, because the mean of its divisors is an integer number (20582016).

Almost surely, 2^1202120010 is an apocalyptic number.

1202120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202120010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975873536).

1202120010 is an abundant number, since it is smaller than the sum of its proper divisors (2749627062).

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

1202120010 is a wasteful number, since it uses less digits than its factorization.

1202120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1202120010 is about 34671.6023569722. The cubic root of 1202120010 is about 1063.2839917968.

Adding to 1202120010 its reverse (100212021), we get a palindrome (1302332031).

The spelling of 1202120010 in words is "one billion, two hundred two million, one hundred twenty thousand, ten".