1202121012 has 24 divisors (see below), whose sum is σ = 2805779200. Its totient is φ = 400588416.

The previous prime is 1202121001. The next prime is 1202121023. The reversal of 1202121012 is 2101212021.

It is an interprime number because it is at equal distance from previous prime (1202121001) and next prime (1202121023).

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

It is a congruent number.

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, 33789 + ... + 59547.

Almost surely, 2^1202121012 is an apocalyptic number.

1202121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202121012 is an abundant number, since it is smaller than the sum of its proper divisors (1603658188).

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

1202121012 is a wasteful number, since it uses less digits than its factorization.

1202121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29655 (or 29653 counting only the distinct ones).

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

The square root of 1202121012 is about 34671.6168068350. The cubic root of 1202121012 is about 1063.2842872222.

Adding to 1202121012 its reverse (2101212021), we get a palindrome (3303333033).

It can be divided in two parts, 12021 and 21012, that multiplied together give a palindrome (252585252).

The spelling of 1202121012 in words is "one billion, two hundred two million, one hundred twenty-one thousand, twelve".