1202151020 has 24 divisors (see below), whose sum is σ = 2885162784. Its totient is φ = 412166016.

The previous prime is 1202151017. The next prime is 1202151023. The reversal of 1202151020 is 201512021.

It is an interprime number because it is at equal distance from previous prime (1202151017) and next prime (1202151023).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1202150986 and 1202151004.

It is not an unprimeable number, because it can be changed into a prime (1202151023) 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, 4293257 + ... + 4293536.

It is an arithmetic number, because the mean of its divisors is an integer number (120215116).

Almost surely, 2^1202151020 is an apocalyptic number.

1202151020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202151020 is an abundant number, since it is smaller than the sum of its proper divisors (1683011764).

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

1202151020 is a wasteful number, since it uses less digits than its factorization.

1202151020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586809 (or 8586807 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1202151020 is about 34672.0495500338. The cubic root of 1202151020 is about 1063.2931345759.

Adding to 1202151020 its reverse (201512021), we get a palindrome (1403663041).

The spelling of 1202151020 in words is "one billion, two hundred two million, one hundred fifty-one thousand, twenty".